LMAO. Some of them had some tig ol' bitties too... even by 30 w/out breastfeeding, they would sag. Maybe there was less gravity than norm in that biosphere we weren't aware of... but then, most of the ppl would be floating if that were the case(?)
Wrong. Breasts keep their shape much more when a woman has not carried a child and breastfed. I can tell you 100% for sure because I've had a girlfriend who never bore a child and her breasts were more than alright at 40 something!
The 70's, women abandoned bras, also was before bikini wax/shaving, and by the look of the costumes, those on set got a real treat, well beyond the absence of a bra.
Between the drugs, and promiscuous sex between the hippies, not to ever forget the protest of Vietnam, but since we haven't reached 2300, we'll not know, since war has yet to cease!