Was that 5, 10, 15, 20, 25, 30, etc.... years ago?These were on TV when I was a kid, they weren't great then, and they've not gotten any better with age.
Things are a dumpster fire these days. People have little respect for one another and society has actually alienated itself from real human interaction due to the proliferation of smartphones and social media.
The Peanuts was a cathartic artistic series of work by Charles Schulz which explored human relationships and life's ups and downs in a manor in which adults and children could relate and enjoy.
Maybe it's not the The Peanuts that isn't aging well.