There’s other factors than just brushing your teeth but brushing is probably the easiest factor that most people can reasonably take control of.
Genetics, obviously you can’t do much about. But you can avoid sweets and decide not to get pregnant (hormonal changes during pregnancy can cause mouths to get more acidic and make plaque harder to remove, and can also soften the gums and bones that hold teeth in, or even weaken the teeth directly). Also, if you want nice teeth, it’s especially important to abstain from smoking crystal meth. And that’s even more important during pregnancy.
But telling everybody “brush twice a day for two minutes” is a small ask with huge returns.
Do these nimcompoops realize that the existing wealthy elite, few in their number, got that way by exploiting social safetynets and taxpayer funded infrastructure for their gains?
So cleary, if we want to be able to generate more wealth and more millionaires/billionaires, better social programs and infrastructure will get them there. Imagine how much easier it’ll be to become wealthy if you don’t have to give employees insurance, or tuition reimbursement? Or if there’s an amazing system of roads, rails, and ports to move your goods to consumers? God, you could become a successful businessman and still have a conscious. Best of both worlds.