There are different meanings for a word "normal". The meaning could be just a statistical average, in some cases. But in any case when we say "normal" the receiving side of communication hears all meanings of a word "normal". Even if the receiving side managed to filter irrelevant meanings of the word "normal" correctly, nevertheless all filtered meanings were heard.

Moreover in this particular case it is not just about statistical averages, it is about social norms which were built around statistical averages. So a normality in this case it is also the rights to have social norms to be built with a respect to my needs.