I think it's the opposite - I only brush in the morning, no cavities, one slightly cracked tooth (tiny enough to leave alone, my dentist had the same issue, and my outcome is better than his was - he needed a crown, my teeth are all natural)

Brush your tongue - that's key. Brush your teeth when your mouth feels gross, like when you wake up or if you don't eat all day. Floss promptly if you feel something stuck in your teeth.

Don't use mouthwash if you don't need it... Cultivate a good microbiome if you want good health - mouth and gut.

My teeth aren't pearly white, they're natural off white. The year my dental report card jumped to an A+, I also started eating extremely spicy food... I'm pretty sure the tongue brushing was the bigger deal, but the two trends started the same year