I fly business class when I can, upgrade if I can, or don't go. Mostly for the last 3 years I haven't gone. Or you can fly a puddle-jumper where
"every seat is an aisle seat, every seat is a window seat, every seat is first class"
but those flights have their drawbacks too.
Even flying private can't escape without some issues: headroom, baggage handling (not), meal service, etc

Narrow aisles, bathroom access (next to nil)

Fast, direct and fun, no doubt. And no stinkin TSA lines. But pricey!
Mike