Im not sure that's the right way to look at it. It's better to focus on WHAT to do with it rather than focus on HOW OFTEN you should play it.

(especially for a beginner because it will be AWHILE before they have a big enough sample to know if they are playing it too often or not)

Depends on what level they are playing as well. I'll raise with AJo most of the time if I am opening or if it's been limped to me. It's what happens from the flop on that matters a lot more.

Im at 65% VPIP and I raise 35% of the time with it, and Im posting a 3 BB / 100 profit. My sample is way too small though to take seriously.