I've been playing scratch offs since I turned 18 a few years ago but now I'm about to be 21.  That means I'm old enough to go to a casino.  I have been to indian casinos before where you only had to be 18 to play and I've done well.  (Casinos in Oklahoma and Alabama)  I look at it like this...  Playing a slot machine is like playing instant tickets.  You play a few bucks and that's it.  If you win great.  If you don't then no harm done you still had fun.  (If you didn't enjoy playing you shouldn't be playing at all)  I think it's fun to sit in my truck and scratch off one number at a time (minus spoiler letters).  But now soon I can go to Biloxi and spend the same amount at a casino.  I know a lot of people don't like instant games or slot machines because they are either rigged or payout isn't great but I'm not out to win money.  Yes, it would be great to win a good amount but if you don't it's still a nice relaxing time to sit infront of a machine and play.  It's all about fun and different people think different things are fun.  For me it would be the slot machines.