Never mind if it exposes your kids to ideas that they aren't mature enough to handle yet.
Never mind whether it's compassionate, or whether it makes society stronger, or whether it's good for the person involved.
Never mind that if this becomes common, somebody else will probably find a way to take it yet further. Somebody always does. Somebody always has to try to ice skate up-hill, neh?
Never mind that what doesn't hurt anybody right this very second may in fact mean cancer, or death, or severe emotional pain, several years down the line.
Certainly never mind that each and every decision we make sets a level of precedence for other decisions to follow.
All that matters, after all, is the pleasure of the moment. And may your tunnel vision find you eternally happy.