Lets post some facts
Test levels drop from age 28 or so
training age is irrelevant, James has less than 2 years, started at 59, and deadlifts more than most on here, in competition, not gym lifts
I set PB's at 45 and I've been training since I was 16
All your limits are in your head, I've seen mental weakness and I've seen mental toughness (Nick 162.5kg squat x 20)....you cant teach it or obtain it.
For you guys in your 20's, its all guess work, you have no idea, and you wont till you get older, Andy can chime in here, and Fadi.
You guys think its age or injuries, I'm here to tell you its kids, wife, job, mortgage that plays a bigger role.
I guess you guys will find out in time, meanwhile, just lift FFS
Nina got stronger at 45, set her first WR, Sussy is strongest at 41, started lifting in her early 20's, then got married, had kids, mortgage etc, training hard now, should be past her peak, but shes not, Vicki is the same, Spiros squatted a best raw squat PB at 44 of 215kg.
Laurie Butler deadlifted 300kg @ 82.5kg and 63 years old.
Nuff said.