So how much truth do you legends find to the saying for every 10years age difference is kind of like a belt?

Just interested in a wider perspective on this.

As a 45 year old wondering how much jump these kids have on me. I guess I am also thinking more about comp dynamics here.

I know these young lads can bounce back way fast than me (I know how fast I used to recover compared to now).

Anyway cheers for any input.

Edit: probably should have clarified - was interested as comp I entered just removed age divisions. Don’t really care for specifics like ‘10 years’. I actually enjoyed comp for that reason though age, weight and subjective skill brackets - felt nice just battling my peers.