One side of my family does the whole 'hug and kiss on the cheek' thing for greetings and goodbyes as well. I wasn't really a fan of all the contact, but I've always been pretty touch adverse as well, only really tolerating hugs from my parents (but even then I would make a fuss about it lol). I've grown to tolerant them more as I've gotten older though, and even appreciate them when people ask beforehand.