Are your other cats inside cats? I think adaptation to living indoors only is partly down to the cat, some don't mind, others will really want to go out even if they have never had the experience before. With mine, I would rather they were indoor cats but if they are not happy that way, I will allow them to go out when there is someone home.
In the same way, cats can adapt to being kept in. A friend of mine moved from her parents house into a 3rd floor flat with her cat. She bought him cat trees and toys and he never even asked to go out. He's been happily living that way for a year now, but it could easily have gone the other way, in which case her parents were going to take him back into their house.