Why are we so pessimistic in today's society

So Here is the context dad is 76 yup seen alot well travelled traveled to most countries before they become commercialized n lets be honest Americanized.

Which could also be classed as commercialized.

Hes never been rich had a standard job got a house early 90s been married 2twice been with current wife for 35 years.

He never really complains some regret like wishes he traveled more and saved more n didn't drink kinda a common thing amongst that age bracket.

Point here no its not about dad but its about his generation and today's generation.

Why are we such pessimists so much about anything.

My dad wanted to go on holiday so he worked harder he needed renovations on the house he worked extra hours.

We living in this time where complaining is the default but it solves nothing.

If u live in a reasonable safe country have a job have accommodation have food have clean water there is nothing to really be a pessimist on.