Born in the 50's, we always had a bag or two around. It made me think all the hot girls I liked were getting them too, even into the late 60's in high school. However, never saw many bags hanging in bathrooms, though when I did, they were an extra turnon.
Never got them regular as a kid. However I did once in the hospital when I was little.
I remember browsing the enema bags in the Sears catalogue. They used to come with three nozzles, a douch nozzle, an adult rectal, and a kids rectal.