When i go into a train/bus and see a baby or child, i move to avoid

I travel in London, where we have "the tube" system or trains that go underground and our buses are either double decker or single, also; most of the tube trains have partitions in them rather than a walk all the way through luxury....just so you know the layout first!

I take the tube am at the middle or near the end to spot if any spawns of Satan, sorry I meant babies or children are in any of them- if so AVOID! It works for me, unless oc a brat and their carer happens to reside into my train carriage.
If you avoid them and they don't enter; its great, as when they are there; they: bitch, moan, whine, scream, shriek (the WORST!!!!!), cry and that's just the noises...sometimes they eat they're smelly monster munch or other weird smelling-crisps or wipe their disgusting snot into things around them or piss/crap themselves...even worse if it's on the seat that SHOULD be for paying adults only!
The only time a child should have the luxury of a seat is if they are still in the womb (no mess, no noise, no problem!) or grown-up enough to respect that this is a public privilege and should be kept nice for others who pay.

Also buses- that's a bit more easy to figure out, as babies and children younger than 2; tend to stay on the bottom floor due to buggies and shit...although having said that, I was once upstairs and a disgusting pustule of Satan shrieked sooo LOUD and HIGH PITCHED that I had a headache that lasted for 4 hours!! thanks a lot you inconsiderate bastard!!

Tell you what, i'll be nice here; when the children are 5 years and older then they can occasionally sit but if they're younger they need a padded waterproof guard to protect the seat.

End of rant!