For me cuddling is almost entirely platonic and something I do a lot with friends However, if said friend has romantic feelings towards me it becomes really uncomfortable, especially if other people see it as romantic. I think hand holding seems to be mostly romantic? But I don't really have any issues with it I just don't get why you'd do it. I feel like kissing would be something I'd be fine with in a sexual context, but not just randomly if someone wanted to say hi or whatever. And I definitely wouldn't want to be part of those couples making out by the lockers that's gross to me.