I don't believe you've had flu every other year.
Frankly, I don't believe you've really had flu if you're that flippant about it.
I had flu in 1999, never been so ill, worse than Covid and that hit me for six. Had to take 3 weeks off work, shivering, sweating, no food, just liquids, pissing and sleep, thought I was dying.
New Years Eve, 1999, Jools Holland, sat on the sofa, two lads enter my house with drinks, around midnight, said we were having a party, only me, still ill, and Mrs H there, wrong house but cheered me up no end, Mum and Dad then turned up and we had a good hour or so. Never seen those lads before or since but proper made the night for us.
Edit: Sorry, was not trying to say Flu was worse than Covid, clearly not, just stating I was ill I’m 1999 but just in my late 30’s it was never going to be the end of me whereas Covid could be the end game for anyone regardless of age, truly the most shocking disease of a few generations.