Subaru x Child Oc

Quentin Hayden Sakamaki is the son of Subaru and Allison. She died in a car accident on Quentin's 6th birthday. Quentin is the absolute copy of Subaru when he was younger. He became distant from his family after she died. The brothers don't want him to be like them as kids, but what can they do? I mean he is only a child and he lost his mother on his birthday.