This is not treating them like children but more like focusing on the fact that a lot of them are naive and emotionally desperate guys who are not aware that it's all a game and are vulnerable to be preyed on by somebody who is willing to give them fake personal interaction and affection for their cash.
Anyone who thinks they’re getting actual intimacy from some sort of transactional relationship is, to put it bluntly, an idiot. However, I think it reflects more poorly on the people who raised these guys than the guys themselves.
I see how one can come to this point of view, but I think there is a perspective missing here about just how lonely and miserable some people are.
When you have never had a partner, when you have never been hugged and told you're loved, when you may also not even have friends or co-workers, and much more, things... are much different. I've met many males on the Internet where all of this applies, and they have a very easy time getting addicted to things that provide social comfort, whether is is Twitch, OnlyFans, Youtubers, and many other things. They want so badly to feel comfort, friendship, affection, and so on, that it is very easy to be tricked into thinking you're attaining it when you are in fact only attaining many strong correlates of it.
I think a lot of this ends up at it not being socially acceptable for men to show emotion or to seek emotional support. I imagine if that were the case most of these people would realize what they're paying for doesn't even approach being a shadow of the real thing. This is a group that would benefit a lot from some sort of self love/self care messaging but I don't even know what that would look like if it were tailored to this group.
I also kind of feel for all the people who signed up to sell nudes on onlyfans thinking they'd make a quick buck and ended up playing therapist for a bunch of lonely maladjusted dudes.