I know you are getting a lot of negotiable feedback from people, house chickens are a highly debatable topic.
Honestly, I think it depends on the chicken. If he seems happy inside, let him be inside!
https://www.backyardchickens.com/th...-my-tv-remote-😱.1429561/page-54#post-23593327
This is a good thread on the subject. There are 60+ pages, but here is the story in condensed version:
This lady hatched a rooster and raised him. He started wanting to mate with her tv remote as an adult. She wondered if he was unhappy. Everyone said he was and he should be outside with hens. She finds him a home and leaves him there for a week.She goes to visit him and finds himself bullied, sick, and almost dead. She brings him back home, where he recovers, and buys him a fake hen to “mate” with.
If your roo seems happy and likes human attention, than I’d say keep him. If you give him away and he doesn’t do well he might get sick or be culled. If you have a backyard you could make him a run for some outside time, and if your space is big enough get him a few girlfriends.
But remember you know him best! Don’t let people tell you he is unhappy if you know he isn’t.