I don't dispute what you're saying, at least not in full, though I would offer a lighter take on the same perspective; they waste a lot of money, but many non s/w don't make it out of their 20's without massive student (and if they're lucky, mortgage) debt, let alone with a sizeable amount of assets.
What's the average roth IRA supposed to look like at 30 years old, 1x your annual salary, as a rule of thumb? And what do you figure that dollar value is as a percentage of what one of the medium to high earners on onlyfans makes in a year? Or a month, in the case of a total outlier like belle or something?
They can squander a lot of it and still probably come out ahead of most of us on a small fraction of what they earn (remembering, no student debt, 99% of what they wear is bought for them, etc) and that's the shitty truth of it that a lot of folks miss. Would they be better off if they invested more and built other income streams? Sure, but to say they're "losing" when they had unbelievable access to cars, travel, material possessions, and whatever else through their 20's while everyone else was dragging through school and dead end jobs is a little bit willfully ignorant of the whole picture - and that's to say nothing of the fact that they may have not had a fantastic opportunity to make good money or have a real career if they hadn't gone the OF route, they might be serving coffee for minimum wage at 28 and been a mental health statistic anyway.
If they're doing zero to save or invest that's obviously a bleaker picture, but it's not that hard to find SOMETHING to salvage out of their bought assets once the boobie-streamer revenue slows down, unless they totally write every car they ever buy off... Which is possible, I guess.
Point is, for the most part they'll be fine, nobody is worth much by 30 anyway and even if the sex work keeps them out of certain roles of public trust, their social network is unfathomably fucking huge compared the following a "normal soul" has - kiwi has what, 675k followers on IG alone? She'll find a job, and probably a better one than one might think.
As an aside, I don't think my own story is that much of a rare case, either, when you consider the number of people who spent the late 00's and early '10s getting tatted up along with literally everyone they know. The demographic who has more than one tattoo is something like 35% of the north American population now, it's not exactly the life milestone show stopper it would have been even 20 years ago, even in some relatively conservative careers. My point was just that many of us have done some dumb shit and turned out fine and the rhetoric on here about how these girls will end up just sounds like whining.