Legally Change Middle Name?

If your child’s middle name has never felt “right”, do you think it’s worth the trouble of legally changing it. I LOVE his first name, and it suits him so well. But we couldn’t agree on a middle and made a rushed decision to pick one to be discharged from the hospital. He’s four months old now and I still just randomly get hung up on thinking about it. But it feels like because it is just his middle name it would be silly to bother changing? But I call our oldest son by his first and middle name on a daily basis. If I ever even try to use our second’s middle name I get stuck on it and for some reason it almost feels like I’m talking about a different person?