Not really "as a kid" but I had Latin for a couple years in high school.
Pro I guess is that it lets you read some classical literature although in 2 years I never got remotely proficient. In some ways it's easier than a modern language because you're mostly learning to read.
Con is mostly the obvious. You could be spending the time learning a modern language. (I also took 4 years of high school French. Never got very proficient in that either. It helps a bit when I visit France but I never spent enough time living it to get good.)
Pro I guess is that it lets you read some classical literature although in 2 years I never got remotely proficient. In some ways it's easier than a modern language because you're mostly learning to read.
Con is mostly the obvious. You could be spending the time learning a modern language. (I also took 4 years of high school French. Never got very proficient in that either. It helps a bit when I visit France but I never spent enough time living it to get good.)