I think the constant attempt at signing me up for tooth extraction is an attempt at over-treatment. Especially since they always act as if it was I who requested it. Eg: Before I leave, I go to the front desk to schedule my next appointment. They say, every time, "When would you like to schedule your extraction?" which is clearly a dark pattern.

So I'm inclined to believe those stories. I just accept that dentists make more money from wisdom extractions, even if there's no reason to have the procedure. It only annoyed me the first few times until I realized they'll always be asking me this.

Incidentally, I think it's a lot like circumcision. A lot of natal doctors just assume they're going to be doing that without asking the parents. It's mostly done because it's a surgical (read: more money) procedure to add to the medical bill. It's pretty much illegal to cut without specific permission where I live now, but that was a common complaint before then.