My mom had a cousin who was in a nursing home for a long time. Mom wasn’t able to visit (different state), but she would send packages and CALL the staff to check in often. She had to call the staff so they knew she was checking, to ensure they did their damn jobs. She had to also call to check on everything she sent (stuff like new underwear, lotion, socks) because theft from the staff was a big issue.
I’m sure at least half of the benefit of visiting nursing homes is so the staff knows someone is there to watch.