He recently had a stroke, 3 weeks of acute rehab and 6 weeks of in-home therapy and care. He lives with my mother (both early 80s). The stroke effected his right (dominant) side, and he has a pretty week left knee due to multiple replacements. He manages OK with a walker, but was wandering if a rollator would give him more freedom (he could sit and maneuver more easily) or if it would be problematic ('running away from him' if he wasn't really paying attention. Any thoughts? Also any idea how to keep him moving? I'm worried now that since people aren't coming by, he won't be motivated to get up and walk.