Convenience of senior living. Many senior citizens choose senior housing because they can’t physically handle home and landscape maintenance any longer. Some seniors move because they want neighbors who understand them and their perspectives. Since condo-dwellers are more likely to check on their neighbors, seniors who live alone often buy senior condo units to alleviate the fears of their loved ones who worry about them living in a neighborhood alone without anyone to check on them. Security is another convenience: Senior condo units have secure access doors. Some buildings even have emergency call systems, remote-monitored security cameras and on-site guards.