The things people like to do don't cease at the age of retirement. They still need to talk, chat, be cuddled, be cajoled, laugh, smile, show pictures of the grand kids and all those social aspects. But there's never enough time. Workers feel this and feel guilty themselves, often, adopting brusqueness as a cover. Giving intimate care has problems also.
Most people only wash themselves, wipe their own bums, or one of their children's.
Touching a person whom you don't know is stressful. Doing so under speed-up is impossible. It becomes an assembly line, a cattle crush. You focus on the leg or the arm, wash it or dress it then move on, usually feeling as if you haven't been able to do the job in the right way. Likewise emotional reactions, are often interpreted as mental illness.