Oh, if Soapstone got transformed into a child-like state, he would basically be the same just a lot more extreme. He would be the child to hide from basically everything, staying quiet as he stares into space trapped inside of his own little world. However, if someone would ever try to approach him, he'd attack like a cornered animal in any instance. Soapstone would most likely jump on the closet person and keep on slapping them with his weapon until either pass out or tear him off. He'd be a demon child.