How about someone enlightens me on how someone of any age can't be in love? Love isn't something to magically aquire at the age of 13, life isn't a video game, you don't gain perks as you level up. Everyone has their own defenition of love, some people love their wife the same way they love their mother, others may love their friends they same way the love their daughter. You can't have one universal definition for love, its just a word someone uses to describe their feelings for something. This young boy can say he loves this girl because he does, in fact, love this girl.
Talk about how only people who have hit puberty know what love is all you want, but you are very wrong my friends, very wrong indeed.