Gymgal, like 2G1B, I just spent a few minutes searching. That stuff is out there and is very, very easy to find. I saw on Flickr an entire gallery of photos that appeared to have been taken at a minor JO meet, probably Level 7 or so. If you find that gallery and then look at the galleries of people who liked the pictures, it's perfectly clear what is going on. I do not see any simple solution to this problem unless private photography is banned at meets. I know USAG is doing what it can with banning some kinds of lenses, but having taken tons of pictures myself with cameras that aren't all that souped up, I know that's not going to stop anyone except at really big meets. If indeed this is the problem IGC is trying to solve, I wish them well.
And John, it is not between athlete and parent. Not at all. The coaches are making most of the decisions here, and they have to be persuaded to change if change is to happen. It would be nice, though, if the leo manufacturers would stop with the ridiculous cuts and if the college coaches who refuse to buy leos that fit would recognize that an AM leo can be ordered without the world coming to an end. Gymnastics is an aesthetic sport, of course, but aesthetics are driven by norms and we collectively can change them.
Furthermore, the question of agency is more complicated with children. If a 20 year old wants to choose a sexualized self presentation, that is one thing, but it's a really different thing if that bleeds down to become in effect a requirement for a prepubescent girl. I do think there is some turf to stand on from which you can advocate for a wider range of acceptable competitive and workout attire that does not constitute body shaming. However, the space within which there are actual choices has to be created.
John, please note that the boys have rules as well. They don't get to wear whatever they want, not for workouts and not for competitions.