petting mobs

I saw that new video of the new drop about baby mobs, and it would be cool if you added petting baby mobs and tame-able mobs by shifting and right clicking, or using the brush since its kinda useless right now except for wolf armour, and petting would give a benefit for example string from cats, heals mobs, maybe stops wolves from attacking your friend if they punch you by accident, horses gain an affect called horse power that makes them run 10% faster and jump half a block higher for 5 seconds after you pet them, baby mobs like calves or lambs or piglets start growing up 10% faster when you pet them, though these are suggestions you can change them just add the petting thing it would be so cool