To answer this question reasonably, first ask,
"What caused them to disappear from the prominence and favor they had?"
The time was about 1955 as Elvis Presley was going on about his hound dog, being, "Nothing But a Hound Dog!" Simple as that. ( or was it his, "Nothing Butt" hound dog? ) Old Elvis, "Have Gun Will Travel", and "Howdy's Doody", oh and remember, "Captain Kangaroo"? Yea, that guy was really shaking them all up! Supposed to be a kid's show, however, all the adults were watching it.
That new newfangled got-ya TV, put all the enema bags, and nozzle collections down deep in the dirty clothes hamper. Grand-paw got him a directional high gain antenna with a positioning rotor to turn it just right for each station. Grand-maw continued her bag and hose treatments. Grand-paw laid his down in the closet. See, he had been reading about this futuristic vision machine from way back,, in the neighbor's comic books. He entered a new age. Grand-maw walked every where that grand-paw did not have time to drive her. She had seen a trainload or filth in her day. So,
Her enema was even a code of decency.
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For me, it was 40 years later and stuck in a motel alone, night after night, and not wanting to mess up at one of the establishments. (see how that works?)
One night i went to one of those warm places to place small bets on home-caught Armadillo races. Next thing i knew i was holding hands with a local girl. She liked to place my hand on her belly when i won a $5. bet. I began to,,, "Daddy, Let Your Mind Roll On." I managed to disappear and from there.
Then home-made enema ideas started to develop.
We all have to admit, in 1955 hospitals were still obliging patients with comforting enema experiences. The doctors and hospitals, nor liability insurance cut them all up and threw them away. As a matter of fact, all through the 1980s you could still drool over drugstore enema apparatus collections. But very few were being sold. By the way, The main drugstore in an Oregon tourist town still has a soda, milk-shake and sandwich bar with fresh per order squeezed orange juice. Back hidden in the North-west corner are some serious enema offerings. Problem is, too many customers are going back there and fondling them till the display and boxes are frayed. So, naturally, as for a tourist, what is done is done, so i took my turn too!