i dont think its the sites. people always blame the sites. but people became lazy and hungry for dopamine. they arent creating cool stuff anymore but almost get upset or withdrawl if someone else dont shove something 'new and exciting' down their throats
internet is not the only thin that suffers it. TV, music, its the same. Listen to what kids played music ,movies, toys etc. in 60, 70, 80, 90s up to today. you will see very sharp changes, first in how they occupy themselves and then in how they shape society -_- for their kids to go into the next dumbing down cycle.
(yes v cynical and black n white put. easier to word)