First, it is "too many," not "to many."
As many people here can attest, they have taken thousands of enemas with no health problems.
Anecdotal, so not based on research with double blind studies, etc.
But many of us have done them because to us they feel good, for whatever reason we may feel the need to justify our feelings because there is a stigma to this and other forms for gratification that does not fall into what we believe are "norms."
Even with the "norms" it still surprises the number of women I have talked into trying an enema from the sexual side, the reactions varied, with more positive outcomes than I would have expected, the great majority.
Another surprise, when recruiting models for enema videos, I expected about 1 in 25 or more would be willing, it was more like 1 in 5, and many of them having had previous enema experience. Quite a few reported getting into enemas because they used them prior to anal sex and found them to their liking.
And then their is the other side that say all anal penetration is evil, women doing something they hate because of male domination! But I have lesbian friends into anal and enemas.
It is what it is, glad we have forums like this so people can feel better about themselves.