At what age do you start feeling like your old?

I think there are multiple ages where you feel old

Teenage years:
You feel like your old but your still a little squirt to the rest of the world. You feel older and superior to kids who are younger than you because you have a slight understanding of more mature things and bigger words.
For the first time you feel like you can sit at the table with all the adults.
Around this age your also trusted slightly more with things like being able to sleep over at a friends house for the first time, or go to a friends birthday party without your parents tagging along to hold your hand

18- early 20's:
You feel old but you're still a child. You start to think about more things like college and life paths and stuff like that but most often than not you push more serious adult life/future thoughts aside because you're "free" for the first time in your life and want to have a little fun, live in the moment, and cherish the relationship your in that you think is gonna last forever but will most likely end before you reach the next stage of feeling old

Late 20's-early 30's:
The real world and adult life responsibilities have hit you hard and you realise how you should've thought about your future more seriously while you were years younger. It hits you hard but someone older reminds you that your still young and have a lot of time ahead of you to get more steady footing in life and that things will get better soon

Late 30's-40's:
You realise you're reaching or are in "The-Big-4-0". People have likely poked fun at you about it a bit.
You start to feel like you're aging faster than you can keep up with. You're starting to see physical signs of aging and worry about your physical appearance and if you should do something about it before you get any older.
You also start to think about the things you wanted to do in life and haven't done yet for whatever reasons and wonder if it's too late to do them now because you feel old. You start to think a lot about your slipping youth and youthful days of the past

50's-60's:
The physical signs of aging have started to hit you harder and you start to deal with the health problems that come with aging and think a lot about the life choices you could've made in the past to prevent the health issues you're dealing with now.
You start to think about your retirement and how much money you have saved up. You think about what you're going to do to pay for things with little to no regular source of income

70's-80's:
All your friends and family members start to die off around you. You feel sad because of it. You feel lonely with less people you know around to talk to.
You start to think about death more. You think about what your funeral plans and expenses are. You think about the people you're going to be leaving behind and how it will effect them.
You think about who will be the ones to care for you in your old age with your health declining each year.

80's-90's:
You think about all your regrets and the things you'd tell the people you still have and love, about life and how not to make the same mistakes you made in hopes that they can live a happier, more stable, and longer life than you did

90's-100's:
You've come to accept that theres no stopping the clock that's ticking. All you want now is to be surrounded by people you love and having some form of enjoyment and happiness for your last year's/months/weeks/days on earth. You hope you won't be so much of a burden after you go. You hope you can go peacfully in your sleep without any pain or regrets.

I'm thirty-one and I don't feel old at all. Still young, fresh and wild.

PS: Got some grey hair but who cares? :)

The day I turned 30 I had a meltdown and don't think I've ever been right since lol

When you look in the mirror and feel disgusted.

17

I already felt like I lived too long, lol.

I'm eighteen. I feel young around anyone over 30 but I feel old around anyone under 16.

I started feeling old since when I was 13.

I didn't feel superior. I didn't feel happy about it. I wanted to be younger. I wanted to be 5 years old again. But unfortunately, that's impossible.

When I was 46,I became very attracted to a 20-year old man. Suddenly I realized that I was freaking old.

I'm thirty and feel old, yet I look fifteen. XD

i would say 19

20ish

Because people around you start to talk about/start their careers/jobs, talk about/get married, talk about/have kids, talk about/have bills to pay, talk about/start to have real responsibilities and struggles, talk about/move to a house to live on their own and/or settle down

All though it's not really an old age, I think around this time you tend to get your eyes opened for the first time that your leaving the childhood/carefree life and entering the real world where your expected to be a responsible adult

You start to realise that the things you saw as struggles and responsibilities in your childhood years, are nothing compared to what you deal with now, and will have to continue dealing with for the rest of your life

You have to think about your education, career path, financial choices, transportation, relationships, living situations seriously for the first time. Along with other things you didn't take into consideration before like all the different bills you would need to pay each month and scheduling your own doctor appointments, getting your own insurance, and doing your taxes, along with other things

I'm 48, and I guess the first time I felt old was when I turned 29.

Im thirty. I feel old and wise.