Ask any pro if you play Ax you better either raise or fold it, gives you more ways to win the pot. Plus will help you get a read on your opponents cards. If you just limp in then get a flop like 257 , how will you know what your opponent has he may of limped in with 7-2 or something. Which he would of never played, at least with a raise you will hopefully know they have some more playable hands which that flop probably didnt help them
