Mobs named “baby” keeps them their baby version

Right clicking a mob with the name tag “baby” will keep or change the mob into its baby form for as long as the name is on them. Once they’re given a different name the aging continues as normal. We would be able to keep puppies, kittens, baby horses, donkeys, chickens, and all the cute little animals you could think of stay cute and tiny. With name tags we can make mobs turn upside down, and sheep turn rainbow colored, etc. I don’t see why we shouldn’t be able to make mobs stay babies.