You’re right. Some people are touchy....but there’s touchy and there’s “touchy”.
I am clumsy. I make a big effort to NOT bump into people.
My daughter’s old teacher loved to put her hand on my back when talking to me. Something she did in kindergarten a lot, but creeped me out.
I teach my kids that unless it is grandma, it is OK to say “I don’t like to be touched!”