the real problem isn't time required, it's having a profession that allows you to maintain a consistent schedule

9-5? no problem, you know that you're available from 6-12 almost every night. you might have some unplanned overtime but chances are you can notify if that comes up

college? yeah it's rough, but manage your workload and you'll find a few hours a week to raid

retail shift worker? good friggin luck, the manager writing your schedule is not gonna exempt you from being placed in a certain block every week to play video games on the internet with your friends unless you're seriously good pals with him, and even then you probably have to make something up that's not that

can you do it? yeah, but the average static leader is not gonna work around you if you can't have a reliable time schedule

(emphasis average and not anecdotal exceptionals)