Ты can never be too old for anything. After all, there's a difference between growing up and growing old.
Besides, my Избранное Показать is the Penguins of Madagascar! And I'm 16! So what? It's awesome (as for My Little Pony...actually, my sister makes me watch it, but it's not complete torture. It's pretty okay :) And like I said, it's not bad for someone older to watch cartoons! :D).
Ok hun Im 17 too and I don't think theres any problem with Ты liking whatever Ты like, its no one elses business. Don't change who Ты are for other people, who probably like something like My Little пони too but don't want to admit it and take the mick our of things that other peeps like instead. So I just like what I like and don't listen to anyone else. and if Ты are around people who don't understand that everyone can like what evaar the heck the like, then just don't mention it infront of them ^^
Carry on liking My Little пони hun, I kinda like it too its pretty ok tbh :) x
I watch all sorts of shows people say im too ld for, I watch Ni-hoa kialan, Aurther, Pokemon, if i could id still be watching care bears. Age doesnt matter, just tell them "Ur just jelous cuz everyone can tell you're old!" XD