I know someone whose parents went into a care home together, he was soon banned from entering the place. It didn't stop there but his wife was also banned as was their son and her son (separate) also. Her mother and sister were also banned. My wife and I were not allowed to visit the old couple - everyone banned was banned because of their connections to the couple's son. He finally got to see his father in the latter's last days after he was transferred to hospital to die. His mother was ultimately transferred to another home where she was allowed visits from all of us.
The fellow, who is not the easiest of persons to get on with (he questioned the home's doctor's conduct when he prescribed the tranquillisers for the parents) mounted a campaign to get access, including a court case against the home and his siblings who were said to be behind the ban. An out of court settlement was reached (which let the home off the hook) and the mother moved out.
All of this completely disgusted me (and others), and I resolved never to go into a home in the UK.