I am sure others on the forum wouldn't be complaining. Hormones such as Testosterone, DHT and E2 control the penile tissues so if you have decline you might have problems, however this not difficult to fix using TRT/HRT.
So i guess your only concern is protecting it during sex and making sure your partner dosen't land on it wrong and bend it.
I'm 57 and haven't had any problem yet, so I'd think that if you keep the cholesterol and bodyfat low, exercise, and lay off ciggies and booze, you should be good to go until about 80. It's all about blood flow to those tiny capillaries.
Thanks for the advice. I do smoke but have been meaning to quit anyway. I do not drink.
Hormones...this is something I know nothing about. I guess if I ever experience any problems, I'll just talk to a doctor then.
Thanks again.