The rare case of a classic reversal of the standard values - the "violence bad, sex good" scenario. We can't diverge into guro/ryona becaue that's icky so we need SOME kind of reason to justify why hitting people with an actual fucking sword doesn't eviscerate them. It's uhhhhh, magic! Magic, of course. The blade/gun/fireball doesn't wound, it just "hurts" haha, you "beat" your enemies into submission before you struggle-snuggle them, haha :^)))))))
Well, that's still better (or is it?) than the necessary justification for not including children existing in the grossly oversexualized world, to avoid any spicy pedophiliac implications/allegations/inclinations/temptations.
In the case of LT we also use - you guessed it - MAGIC!!! Babies simply grow up into fully mentally and physically functional adults in a manner of hours (minutes ?). WAOW! That sure isn't fucking stupid.