My best friend could be my son. Another close friend and outdoors buddy has two young kids. Both are straight. I simply relate much better to millennials and older Zoomers than I do to fellow boomers.
There aren’t many peers who have the energy level I have so that rules out a lot of people my age or even 10-15 years younger. I need to lift, run or ride every day.
That said, still am close to a high school friend, which we both are grateful for.