I'm 50 and playing for Team Unlimited in the CPPS (Div 5 and Breakout) and having a great time.
The new M500 format has made the game better (in my eyes) and more playable by the older ballers who have the experience and skillset - as Pete posted not so long ago, its made the playing, more a game of chess.
Yes you need to cover the ground, but leaving the snake sliding to the whipper snappers. Unlimited are a disabled team, with three members who play with replacement lower limbs, two with diabetes, and a few other ailments, none of which stops us completing and enjoying the sport we all love.
Don't worry about how your gun looks or works, with 10.5bps and reduced paint usage it wont be out of place and should keep up.
Best decision I've made in a long time getting back into paintball and giving the CPPS a bash.
Good luck and most importantly have fun.