You mean the lockdown that we all endured?
You don't seem to understand that wealth is often down to luck and not age.
My husband died during lockdown, so the last couple of years of his life were fairly miserable.
He was brought up in a rural area. Left school at 15. (His parents wanted him to stay on, but the HT didn't think that someone from his background could progress: his parents were working class.)
Got the minimum wage as a forestry worker. Did 3 yrs in the army. Back to his home village and got the basic agricultural wage. Took whatever other odd jobs he could. None of them paid a pension - his NI contributions were supposed to be for that.
Went to night school. Sat the local uni entrance exam. Became a late entrant teacher.
When he retired, he got his State Pension plus a teaching pension of 8k. He was paying tax until the day he died, so from a monetary point of view, he contributed for 67 years.
If you assume that the majority of pensioners are well-off, it's because you're basing your ideas on your own social circle.