I'm 30, so dead, more or less.
The Internet stopped being informative probably 5 or 6 years ago. It was around that time that it became increasingly unidirectional, like TV, as opposed to the Good Old Days™ of BBS and Usenet and IRC, when the whole thing was a bunch of people on connections so slow they only data they could consume was information from other users in the form of actual words. Today, information is free but worthless. Back then, information was free, worthless, and informative.
I do not know what leisure time is.
Well, i personally think the older one gets, the harder or less one tends to change... but the potential always exists to mold one's habits and behaviour.
I dont think blaming "how the internet is now" is useful, rather you should focus the "locus of control" upon yourself, because thats what you can change, the internet wont change for anyone
it just is what it is.
Leisure time is free time. I have noticed that when i have only about 2 hours of free time a day, or im under a lot of stress, i fall back into just watching crappy memes or random useless entertaining trash, not anything learnful or useful... when i have a bit more time i do research on stuff i like, like music trivia, reading articles, or even sometimes writing.
Leisure time under stress just seems to be used on relaxing, kind of like indirect meditation by watching funny things, because the main focus is survival.