Then why don't you try it? You won't do it. You know why? Because there are LAWS in place and you know you would either be shot to death by police, or sent to prison for a long time and become another inmate's girlfriend.
There may still be the occasional idiot out there who is dumb enough to try this sort of thing, but they always get what they deserve in the end. That's enough to keep MOST of them in line. It's better to have laws like this and enforce them, than to not have them at all.
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