It's depressing how many men are still out there under the impression that they get to sit back, judge, critique and appraise women as though we are on parade for their approval.
Even educated "modern" men.
Some of the comments I've experienced:
In the middle of a conversation I thought was occurring between equals with no sexual interest or flirtation, "nice jumper, you look almost date-able today" Eh?
When I returned from a formal do and walked past male flat-mate "you look really good, but your legs really let you down". No opinion had been sought, said as though this critique was some sort of favour to me.
In the middle of a discussion about work, "I think it's time you grew your hair long again now". WTF, again I didn't ask and what does that have to do with my work.
Again in a discussion about work "you've put on a lot of weight, time to do something about it?" (Perfectly normal BMI at the time btw)
Also at work in a totally unrelated discussion "you are looking really lean, good for you".
I have also had, uninvited, "you could be a model except for ......" As though being a model is naturally something EVERY WOMAN MUST aspire to.
The bottom line is that ALL of the men who said these things are/were arse holes. Men who didn't get that women are equal human beings rather than primarily decoration (who you hope you get on with as a secondary issue). I would never want to be in a relationship with any of these men.
Your mum had a lucky escape, it can be a great relief to have someone show you who they are so early on.