A mature hairline is balding, period. And recession at 22 is IMO a sign of more balding to come.
How do you all feel about this remark? I find it empirically accurate. That is, anyone who has a mature hairline at 22 will experience further balding (and will not remain at a mature hairline their entire life). I find that those that still have mature hairlines at age 50+ didn't reach their mature hairline until they were in the their LATE 20s. Unfortunately David Bowie is the only example I can think of. At 28, he still had a straight hairline. His mature hairline isn't apparent until his 30s or 40s.
In short, did any 50+ year old male with a mature hairline find themselves with that hairline at an early age (19-25)? If this is true, it would really help forecast the hairloss to come.