Yes. Money can help. Compare Elon's hairline now and 20 years ago.
Average density is the same, just redistribution. :)
Counter-argument: Bezos.
It's not a good counter-argument, though. Plenty of people grow more hair.
Learning to rock a shaved head is likely cheaper and easier.
The last time I went to Turkey every other foreign guy that stayed at the same hotel as me has just gone through a hair transplant. Guess that's how it happens.
Sure. Some newborns have thin hair upon birth or shortly thereafter, and then have a full head of hair by the time they reach one or two years of age. No treatment required.