I agree. I have never done drugs, either...no desire and no need. I was not in that kind of environment. Perhaps Patti was influenced by the California lifestyle. I have always felt that Maureen and Michael seemed to be more like their Dad, Ronald Reagan, than Patti and Ron, Jr. The latter two are just strange.
And the drugs she took. I classify her in with people like Ozzy Osbourne --- they've messed up their minds and once you've done that too much you really can't be expected to be completely normal again. They might even try sometimes and they might not be completely gone but they're never completely there.