I think many people, regardless of age, pirate becouse of laziness.
Such a simple thing as having to fetch your credit card from your wallet, installing and registering on a game download service (such as GoG, Steam). If you are used to torrenting, if that is you normal way to get stuff like TV shows and movies, there is less _resistance_ to download the cracked version of a game.
I dont justify this, or think its good, just pointing it out.