Catching the bad guys

Last night, Landon and his friend had a great convo...

Mason: I wish there were no parents, so we could do whatever we wanted.
Me: If you didn't have parents, you wouldn't have any one to buy you toys!
Mason: We could steal the toys!
Me: Well, then you'd be in jail for stealing.
Mason: There wouldn't be any jails
Me: Then all the bad guys would be free - and they might try to get you.
Landon: Well, I'll be the policeman!! 
Landon: Wait, how do you even learn to be a policeman
Me: You have to go to the Police Academy
Landon: Well, I already know how to catch bad guys.  First you need a net...