I'm thinking that technology has a lot to do with it. Example social media has a big influence on people, more pressure to 'succeed' in a way, making a persona like life? Not sure how to explain it but you get the picture. Everyone wants to be happy at all times because everone else looks to be happy?
Several other factors have something to do with it as well, say the increasingly expensive housing market (depends on where you live ofc) makes it more difficult to do simple things like live on your own, be independent.