There is a great deal of truth on younger people are less widely read and thus know significantly less than perhaps someone who is in their 40's, 50's, it's one of the reasons I always go out with much older men, men my own age are usually by comparison boring because they have less to discuss and offer etc ( not always but often). However I don't think that can just be put down to experience, it's certainly exam orientated teaching methods. Today all that happens is schools chase exam and inspection results at the loss of creating well rounded, curious individuals who are strong and confident in themselves. Couple that with the dystopian dumbing down of the TV and media, the emotional unattachment because of social media and the general lack of celebration of people as unique individuals who can make careers which play to their strengths and I think you do get the impression that as a whole the younger generation are not as sharp. I don't think that's because there is anything wrong with the raw material but rather with the way it's being moulded with all the above effects.