OP - hope no-one ever says "ewwww" to your DC. Can't imagine it would be very nice.
By the way, my DS sometimes wears sleeveless tops and if I ever caught anyone throwing him an ewwwww type look - I'd have their eyes out. Sorry, but it's true.
If some people think it's "common" to wear certain clothing, then that's their opinion. My opinion however is that it is entirely unfair to make others (especially children)feel like second class citizens.
Oh and FWIW, I wear vest tops......but then, I have really toned, slender arms and great boobs