[NSFW] Why do some girls in their 20's do low paid amateur porn?

Is this to break into porn or glamour full time, or is it just for some extra cash?

It’s surprising how many beautiful young girls are prepared to do this and in doing so are risking bringing great shame to their families as well as jeopardising their own futures.

Or do some people simply think it is no big deal to have sex on camera that will be shown to the masses?

And has anybody on here every done it? And if so, are you happy for people to see it still and do you regret it?