I agree.
My daughter travels by train a lot as she is at university 200 miles away. She's in her second year and has yet to complete a train journey without a man either sitting next to her on an empty/near empty carriage or sitting across the aisle to her facing into the aisle and blocking her exit with his manspreading; talking to her even if she is reading or has headphones on (she wears huge noise cancelling one so the excuse of airpods being hidden by her hair doesn't fly); passing her on the platform and then turning round to follow her to initiate a conversation; following her into a platform coffee shop to ask her for her number (no attempt at conversation even)... the list goes on.
I've told her it still happens to me (at 51) and we share our experiences just so she knows she isn't alone and it isn't her.
I have spoken to men about this over the years and a lot seem to really not get why it's unwelcome or intimidating. The general consensus from men is that they would love it if a woman paid them a comment (especially a sexualised one equivalent to nice arse or great tits) or at least not be bothered by it and thank the woman for the compliment.
Most of them will also concede that it would be less appreciated from a woman twice their age, one they didn't find attractive or where the woman was persistent. But, because it never happens to them, they just don't get it and because they're never at risk of actual harm or feel it, they just don't get it.
Two years ago, my partner and I went into a pub. He went to the loo and came out looking visibly bothered by something. Whilst he'd been using the urinal, a man had walked past him and stroked his arm. He said he just froze because it was such an inappropriate thing for that man to have done and broke all urinal etiquette. It really unnerved him.
He just said that's be how women felt every single time a man behaved in a predatory way around us. Yes. He also said that he was 60 and that was the first time in his life another person had made him feel that way. I told him I was 10 and that it had been a frequent occurance ever since. He got it.
At worst, men are intending to he predatory at best they just don't have a fucking clue and think, I'd like it if someone said/did that to me.