It differs - here becoming a croupier is a two-year paid traineeship where you do a little bit of study first to get your licence etc then the rest of the time you're learning as you go on the gaming floor. The merits of dropping lumpys straight onto the gaming floor are debatable, obviously...
I don't know what they system is like over there but here it's also rare for you to be able to choose the games you learn. You can't go to them as a new recruit and apply as a
poker dealer, for example, because they'll just train you in whatever game they
need dealers for (typically
roulette or
baccarat) and just dump you into that game.
Regardless of where you are you'll also need (in descending order of importance):
- A thick skin
- A tolerance for shift work, lousy hours and probably for lousy pay too
- Solid math skills
- Good manual dexterity. They should teach you the chip / card handling skills you need but if you're naturally inclined towards being a fumble-fingers then it'll be that much harder to learn