Miss Universe has been around since the early 50s I believe, and has close to 100 countries participating annually, including a Miss Great Britain entry.
Children’s beauty pageants seem to have had a surge here in the last 15 years or so.
There’s also Miss Galaxy (never heard of it but it’s the same one Yaniv is citing in the Canadian action.
There’s also a Miss Transgender UK competition, or there was about five years ago. No idea if it’s still running. As near as I can tell the UK beauty pageants require natal females to participate. Again, not sure if that has changed to include transwomen with full surgery or GRC or what, especially with the Miss Galaxy UK as it’s presumably the same company that presents in Canada.
As for the participants, it certainly didn’t used to be the case that adult pageants were only for those who had grown up through the pageant circuit as children.
I went to university with Miss Illinois 19XX and she started as a high schooler with an eye on the scholarship money, which is a huge deal in the States. She made it to the Top Ten of Miss USA (the winner of which represents the country in Miss Universe). She had a degree in telecommunications, was an orange belt in tae kwan do, was an accomplished violinist, and finished valedictorian if her high school I believe, as well too honours from uni. She was also very nice and funny as it happens.
None of which has anything to do with Yaniv, but someone did ask.