38-year-old Swede here. Started practicing S&S in November 2018.
Being a "program-hopper" I tried to mix S&S in other routines in the past (gymnastic bodies, Convict Condition, + stretch-program + S&S; you can probably guess how it went). Finally, I decided that I was just going to focus on "one" program at a time.
I've always defaulted back to bodyweight training, having trained capoeira for about 15 years. Got bitten by the iron-bug a few years back but just couldn't find a good balance between spending time in a gym with a barbell and getting quick and effective training at home.
Then I seriously started practicing with kettlebells.
The satisfaction of lifting iron mixed with conditioning and pure strength was a game changer. I feel even stronger despite not having done any other strength work for over six months.
As I said, started in November last year and achieved "Simple" just today with the 32 kg bell, weighing in at 71 Kg of bodyweight. I'm currently struggling through a depression these last few months so training has not been as consistent as in the beginning. I still manage at least 2-3 sessions per week, though; I see it as medicine.
Granted, I'm still not sure I'm "owning" the weight, having practiced solely by myself. Having just done swings and getups for over six months though have given me confidence that I'm at least not doing anything stupid. I feel strong
I'll keep working the program a while longer. Then my aim is to start practicing for "ROP" before trying double-KB work.
Feeling proud right now.