National Geographic has a major article in the May 2016 edition on Yellowstone National Park. Amongst the beautiful pictures of wild animals and hot springs there is a lovely picture of "the swim team from Santiago High School in Corona, California", enjoying Boiling River. All the guys are in Speedos. This show that teenagers, even in the US, are happy to wear Speedos in relaxing situations and not just when they are racing or training as part of the swimming team.
http://www.nationalgeographic.com/ma...3175221967.jpg