I don't understand what influence you are concerned about. The only I can think of is that they lesbians would attempt to seduce the daughter's friends, is that what you mean? Or is it that the kids will see that there are lesbian couples and be more inclined to see that as normal?
You were not specific.
OK, I can't so this anymore. How you come up with "seducing" out of the word influence I will never know.