[garanduss]

The concept of culture is in many ways a stereotype of personal and group behavior, so your argument doesn't make much sense to me.

[zepto]

There is no definition of culture which matches what you have just said.

https://en.m.wikipedia.org/wiki/Culture

What you are therefore saying is that you as an individual can't think about culture in a way that isn't stereotyping of personal and group behavior.

Despite this not actually being what culture means, you are not alone in thinking this way.