> Would you support your 18 year old child doing onlyfans like you might them working at Disneyland?

I would support them the same way I would support them becoming a stunt actor or performing any other job that comes with significant risks - very hesitantly, while having a conversation about potential downsides and not being super happy about their choice (again, mostly due to risk to themselves), but without thinking that it is inherently some moral crime.