@user1497207191 @Kizty
Sorry to hear of your negative experiences.
However, I stand by my words.
I am not talking random, unwanted physical contact by strangers, but an expected convention. That's literallly what greeting conventions are for. Humans started showing their open hand/shaking hands in greeting to show hthere were not holding a weapon! And within that, of course some cultures are more tactile than others.
Will some people abuse them? Sure, just like other people abuse the fact that you are passing very close to them, or that you are alone and weaker on a dark street, for instance. But that's nothing to do with the fact that affectionate - or at least well-intenioned physical contact - is what the human brain craves.
Just ask babies, or all those poor Romanian orphans who were damaged for life precisely because of the lack of human contact.
As I said, I really don't like physical contact as a rule (like you, I also have my personal reasons). But I appreciate the reason for it in formal or social scenarios.