Liberty Ridge is low key a chop route with seracs at the very top that threaten the route that really aren't discussed much, maybe due to its 50 classic inclusion. tons of sidehilling on the ridge as well = not really classic climbing imo. It is certainly a big cool feature on an amazing mountain.
youngest person to climb it so far was 4 years old. https://www.seattletimes.com/seattle-news/young-and-old-make-it-to-the-top/.
AAJ talks about 15 year old having accident at thumb rock in 1978, my bet is some 13-14-15 year-old did it long ago with no hype. https://publications.americanalpineclub.org/articles/13197803202