I thought it was universal, but I have noticed that it's just another interest with kids today. When I was like, aged 5-10, dinosaurs were just the 'in' thing. If you liked dinosaurs, you were the coolest. Also I think that there were some major paleontological discoveries in the 1990's that boosted general public interest and also sparked the creation of one of the most awesome movies ever, Jurassic Park.
Ah, you might be right. My nephew just got this huge pile of plastic dinosaur toys for Christmas and he liked it but it wasn't a big to-do.
Jurassic Park is fantastic. *high five* The couple times I've been to Islands of Adventure, we HAD to visit the Jurassic Park area.