Marriage

Hi ladies, I just wanted to post something on here and get some opinions. So my boyfriend has been in foster homes almost his whole childhood. He was adopted by a family who abused and neglected him, almost tortured him 😔 then he was able to get away from them and another family took him in but they never legally adopted him. When he turned 18, he left them and started his own life, got a good job and moved into his own apartment. Since the last family didn't adopt him legally, he is stuck with the abusive family's last name. He proposed to me a couple months ago so we are now engaged, he's mentioned to me a couple times that he wished to take MY last name instead of me taking his because he doesn't want to pass on the name to our future kids since it brings back such bad memories for him. I'm totally on board, I don't care. It's just a last name, I don't want to make him feel any worse than he already feels. He deserves to forget all that horrible stuff. However, does anyone think it's weird? Is it not well seen?