Huh, interesting. I have smallish breasts and I don't think a bra is necessary. I don't wear one around the house. I usually wear one when I go out but depending on the top, sometimes I don't. I am trying to figure out ways to wear one less often when I go out. Physically, I certainly don't need a bra for support. But I do need one (or something) when I go out, for modesty.