I’m not sure about that, there’s been all sorts of studies about old people and loneliness. The loneliness is so bad it impacts their health: http://www.nia.nih.gov/news/social-isolation-loneliness-olde...

I would be genuinely surprised if older people are happier than younger people.

Lonelyness seems to be a problem of social institutions rather than physical defficiency?

I would argue that it’s neither, rather I believe that the issue is how society disproportionately worships youth.

"society disproportionately worships youth."

Does it really? The derision of millenials seems never ending, along with 'kids these days' and 'back in my days'.

There is an endless amount of hate for millennials unfortunately. However, just because an older generation is hating on millennials doesn’t mean that society as a whole doesn’t place a greater value on youth. While this example is anecdotal it kind of drives home some of the problems I feel that we have in society.

“Soya told the TV programme Getsuyou Kara Yofukashi (Sitting Up Late From Monday) that he had wanted to increase his presence on social media and believed people would prefer to see a "younger beautiful woman" rather than an old "uncle".”

https://www.bbc.com/news/world-asia-56447357