Why do older women act strange?

Since the lockdown has relaxed and more people are outside in day to day life, I regularly bump into women around my age (30-40) in my own neighbourhood.

However each time i glancingly say hello, any woman over the age of 30 just blank stare and do not respond. This was most demonstrated in a woman who lives 2 doors down who in this neighborhood should be social and at least say hello. Her kid was outside playing and I even retrieved his football for him that had landed in my garden..

Another time a woman was walking up my street in a summer dress and I was at least 5metres behind her. I had opened a package gleefully looking at it whilst walking and then I look up to see her stopped and shed turned right round to stare deeply at me, no hello or smile or anything. I looked at her and after a while I eventually turned my face away as she was creeping.
This was all in broad daylight.

This kind of behaviour is perhaps helping realise why men prefer to date and meet younger women. I don't have such problems with women in their 20s.
Why do older women act strange?
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