I’ve had the same problem. Both of my parents died when they were 74 and neither were a bit grey except for some grey wiskers on my dad. My mom had beautiful soft skin. I was working at my job over 10 years and I’d get patients asking me if I was still in school, when I told them I’d worked there for 10 years they’d comment that I looked like I was 13. My brother got the other end of the stick, even though his face looked young he was going bald at 18.
DH is almost totally grey but last year we went out with my nephew and his girlfriend. My husband ordered a beer and the waitress carded him. He was 51.