Don’t think it’s generational. I’ve had a gmail account for about 15 years, and use youtube a lot, and I’m in my 50s. I watch a lot of repair, will it start, restoration and motorbike videos - there’s some amazing content on there, far better than anything available on my tv. And as an educational tool - need to repair something in your home, or change the brakes on your car? Within seconds you have multiple instructional videos of real people actually showing you how to do that exact thing - the world’s never known such a thing.