I like this man, 16 years older than me. I am 21, and I don't want a family now. But I think he wants. He is lovely with me and lately I can not stop to think about him. Ah, we never seen, we live far away, and he wants to see me. Should I give him a chance?

If you guys are compatible, give him a chance. But if you two both want something serious, you might have to make that clear from the start
I once had a crush on someone and there was a 23 year age difference. Anyway that was something she said and I think it ranges true. As long as you are both legal adults, it doesn't matter. I think you should meet him.
Good Luck!
I'm more concerned with the fact that he might want a family and you're not ready for one- that can be a huge deal in a relationship. If he's dead set on wanting a family at this time, and you're not ready for one right now, I think that might be the bigger problem in your relationship, not your age.