I have an Asian background, and I live in Australia. My husband is European, and at family gatherings, his family members tend to greet me with a hug and a kiss on the cheek, which makes me uncomfortable, but I have learned is customary in some European cultures. I don't kiss them on the cheek in return.
It's hard to describe why it makes me uncomfortable, but my parents and siblings never used physical signs of affection growing up, so part if it is that it's something I'm not used to. I also think kissing is something for people you are really affectionate towards, and while I like my extended family, I don't feel that they are in that category.
I have tried simply standing back and greeting them with a wave, but they will always come close and do the hug+kiss.
Is there a way to explain that this makes me uncomfortable without insulting them?
This may be similar to the question "How to avoid having to kiss my mother on the cheek without offending her", but in my case, it's not my blood relatives, and it's mostly the extended family that do it (my mother-in-law and father-in-law have picked up that it makes me uncomfortable). I see these relatives maybe once a year at most.