I have no idea whether he would have said it to a bloke.
I said it to a bloke, when it happened to me. I totally accept all the gendered stuff, but in this situation, I'm really struggling to see why you felt that way (I'm interested why you felt that way, but I'm struggling to grasp it. Is it because it is tied up with all the other genuinely gendered instances where a group of blokes made passing comments to a lone woman? In which case, I see your own personal context. But why does a bloke asking a woman if she saw him fall over - presumably damaging his street cred and minimizing his masculinity in one fell literal swoop, have to be looked at in this manner?)
This instance wasn't a gendered exchange. By judging it as such, we run the risk of building further barriers between the genders.
This was a person who slipped and made a comment to a passer by, in the same way that I and a few others on the thread have done. I wouldn't have cared if it was a man, woman, or alien from outer space, I was co platelet preoccupied with my own display of comedic value and my sore arse and damaged dignity. Wy would it have been any different because he was a man?
Why would his intentions have been different because you were a woman?
I'm genuinely interested that you felt uncomfortable because of the gender dynamics in this tiny exchange - and I think it says something appalling about expectations of gendered relationships in public.
Is it just because he was in a group and you felt threatened? (Even though he was one the one who had landed on his arse?)
I find locally we have a far more relaxed attitude to teenagers hanging around in groups - they are often polite and well mannered, and although I often find my expectations of conflict increase when I see them hanging around a bench, I am invariably reminded that just because they are 14 doesn't make them a danger. I smile and say hi, and they smile and say hi back. It's reasonably common for teens to be engaging and helpful in say car parks/ shopping centres. I can't help but feel they are trying to nick my shopping, but I know that's my own inherent bias after years of UK media telling me how dangerous teenager louts are. Ditto men.