Class doesn't come into it, I haven't (yet) said from what 'class' the Brownies concerned mainly belong to. (Actually, quite mixed) And I'm fully aware that little girls aim to ape the grown-ups on TV, magazines etc. I merely felt, and still do, that it was distasteful, and NOT what I perceive the Brownies to be about.
I don't quite see what ear-piercing (or indeed female genital mutilation!!) have got to do with the case.
As an ex-Tawny Owl and a teacher of this age-group for decades, I know what super, interesting, funny and rewarding stuff can be achieved, without resorting to pseudo-sexy cavorting about to a karaoke machine in front of a quite large audience of adults.
My reaction at the time was instinctive, I was squirming with embarrassment. I just wanted to know if others would have felt the same. No-one will ever convince me that there aren't lots of better and more interesting things to be doing at the age of seven years old.