I assume we all feel like the odd one out in certain groups or around certain people. It’s part of being human.
Just a side note, I don’t want this to be a polarizing thread so leave religion and politics out of it.
However its not intended to be all serious either

I’ll start
I don’t know how to relate to people who take the time to do their hair every day. It makes me so tired to even imagine doing my hair on purpose every day.
I also don’t know how to relate to people who don’t use insults as a term of endearment. I can’t do the less than 3 thing without feeling like an absolute fraud
Replies
I don't know how to relate to people who never read for pleasure.
I don't know how to relate to people who always expect someone else to pay their way (as an adult), whether it's their spouse, parent, or friends.
I don't know how to relate to women who use a lot of "baby, hon, sweetie, girlfriend" language with their friends & acquaintances.
I don't know how to relate to people who don't care about music at all and do not have a favorite song, band, etc.
and
I don't know how to relate to people who wouldn't give me the time of day when I was obese.