Depends on site insurance - some wont allow players under 18 or 16.. a few go as low as 14
You need to check with site operators beforehand
This is the best advice here so far - If you are going to spend £60 anywhere spend it on playing gear like goggles, boots or pads or soft kit. Beg, borrow or rent a marker/hopper/air tank until you..
A/ Decide what type suits your game and budget
B/ Have some real income of your own to spend on the game
Paintball isn't a cheap sport/hobby to finance. Unless you have lots of spare cash or can find sponsorship, it'll be difficult to afford to play regularly - paint alone costs approx £25-30 a box. It's taken me years of graft to assemble the level of kit I now own, so don't expect it fall in your lap overnight. I didn't start playing until 1989 aged 25, but worked full time from 16 so had the £££ to afford it when needed.