It's the semantics of "can", where it is used to suggest feasibility. When I moved and got a new commute, I still "could" bike to work, but it went from 30min to an hour and a half each way. While technically possible, I would have had to sacrifice a lot when losing two hours a day- laundry, cooking dinner, downtime. I always said I "can't really" bike to work, but there is a lot of context lost.

So you can, but don't want to.