My two cents on the choking thing: I lean more towards All & Forward's opinion that it's fairly run of the mill for 'young' people who are quite sexually active (up there with rimming). My personal experience - as someone in late twenties who would probably be considered quite 'promiscuous' by most - is that it frequently happens in casual sex, although it's always been brought up first. Just doing it without asking would be creepy and in that case I agree with the lasses. On a societal level though when I really think about it it makes me sick. It's such an example of porn's dominance in shaping sexual behaviours and then violence against women being normalised in that regard. Watch HBO's Euphoria in you want an insight in how effed Gen Z is.