In tournaments, players typically raise when they enter the pot. In cash games, though, players are more likely to limp in before the flop. That's because cash games are usually deeper-stacked, meaning that players will have a higher ratio of chips in relation to the blinds than they would in a tournament.
I dropped out of school to play poker, and at 21, I moved from Toronto to try my luck as a pro in Vegas. I ate the typical meat-heavy diet of most poker players in the '90s: burgers and steak, along with French fries, mash, and a bucket-load of wine, beer, and vodka. There was nothing fresh in my diet, and I felt terrible.
Some golf instructors get overly technical and teach the mechanics of the ideal swing. That approach didn't work for me. So, I found a pro that didn't insist that I learn Tiger's swing. He accepted my physical limitations and improved my game by focusing on the minimal golf skills that I have.