Eh, got nothing against self-gratification, have obviously done it often enough to have reached my conclusions!
Years ago, I felt differently - self-gratification is one of the ways I learned what really pleases me and how to tell instantly what flavor of sex I'm in the mood for. Just, over the last decade or so, what I posted before developed.
Who knows how I'll feel when I get to 'dirty old lady' age. ;)