I dont have a problem with moulding. I wish people would stop seeing it in the same veun as some push up bra. Truth is wgeh you are developing everything's uneven and sensitive and moulding is far more comfortable and stops you being self conscious. Puberty is hard enough without being used as some guinea pig to prove a point regarding arbitrary age limits and parents who seem to have forgotten forgotten what its like to be a little girl and sexualise even necessary underwear.
The bikini style itself I have to say doesn't look particularly practical or comfortable. As usual girls are having to pick between practicality and comfort and functionality. Would be nice to see some thought go into a bikini that had moulding but also a decent structure to stay in place that won't see shit come untied or being too tight to keep in place and would survive a wave or a dive
Bikinis and tankinis however are extremely handy for the beach and days out. The dreaded toilet trip with a swimsuit is something we all dread. Plus I don't know abiut anyone else but I've always been long in the body. I have to size up to not be cut in half lengthwise which leaves stuff baggy in areas you really don't want. Bikinis don't cut you in half and aone you can eveb mix and match so if you need a bigger top or bottom you can get it.
Ironically in this bid to not sexualise children parents would let them.wear shorts and no top because a 9 yr old girl is just like a 9 yr old boy and doesn't need a bra top... or let them just run about in underwear like children do, so covering the top half in a vest is fine but chop of a couple of inches of that vest and all hell breaks loose.
Personally I think a lined/moulded crop top style bikini top would probably be better and more comfortable i know o from experience that halterneck bra tops are a pain in the arse and I'd not inflict that on a child.
But a bit of moulding is no big deal but then I remember the humiliation of thise god awful non lined non moulded bras and I wouldn't do that to a child.