Cool story bro! (: I'm not 50, but I did start two years ago when I was 30- and I totally feel like I missed my prime opportunity - nevertheless I'm enjoying myself. Like you getting in 30+ day seasons even with that crummy winter we just had. I want my little guy to have an early start (if he enjoys it?) so got him mostly geared up - he's 2.5 and excited.
Anyhow, very cool you're getting into the sport!