What do you mean by nature ? I have friends who lost their scalp at 15. This wasn’t funny at all. Androgenetic alopecia is 100% genetic. The family background confirms it
Biologically, we are supposed to have kids pretty young by modern standards and our DNA assumes we already had a lot of kids by the time we start balding, we bald because our bodies assumes we "don't need" our hair to Peacock anymore and wants to focus energy elsewhere.
And modern Diet in general is unhealthy, not just when it comes to hair, Dentists are making bank from how much our teeth can't handle Soda and sweets.
Combine that with a very stressful lifestyle and you have today's Chinese men going from having the Hairline of a 18 years old Caucasians in their 40s to 25% of them balding in their 20s according to a recent study
The good thing is that East Asian billionaires might actually speed up research for a Better solution for baldness because they don't give a shit about "body acceptance" like the west does