Is There Ever A "Too Young" To Start Masturbating?

That totally disturbing story yesterday about parents masturbating their kids got me to thinking: What age do most kids begin doing the deed themselves? Although my relationship with my vibrator is one that I cherish (and one that got me through a dateless Valentine's last night) I was manual, not automatic, for most… » 2/15/08 4:20pm 2/15/08 4:20pm