Idk, want skateboarding “commercialized” pretty early on. The first Tony Hawk game came out in 99. Pretty sure there had already been a number of skate boarding themed movies and maybe even a video game or two before that. Skateboarding was invented in California around the mid 60s, and the late 70s and 80s had a pretty be obsession with “California Culture” and stuffed sanitized versions of everything cali into media. I remember seeing skateboarding in lots of movies Pre-99, and it was usually just presented as something “the teens do”.