Wrong. Also, assuming your use of the phrase "Middle Ages" is a reference to the Hiberno-Saxon, Carolingian, Ottonian, and Merovingian peak time periods, then you're wrong again. This art is an early Christian work, and is therefore probably Byzantine.

They did it with Jesus in particular, since they thought he couldn't be respected and feared if they showed him as an infant. The gerber baby doesn't really scream "omnipotence."

That's completely wrong. They drew Christ the child to appear as an older man to convey his wisdom, intelligence, and enlightenment as an anonymous comment already pointed out.

I thought they only did that with jesus, to make him appear mature

Nope, during the Dark Ages everyone just fucking sucked.

I like beating people as yoshi, it's super humiliating

hnnnnnnng
bbaarrring-HUP

brawl or melee (I have them mixed up) doesn't really count because his ultimate power up is fucking ridiculous

I uses his egg rolling ability to rape people, not very humiliating when you are an indestructable rolling egg of pwnage

I always roll off a cliff and die

it's hard to master, but worth it when your friends inevitably pick confined space all the fucking time

I love to humiliate my friends using Jigglipuff.

Agreed. I like Yoshi too, but my main is Olimar. (Brawl)