There are plenty of 55 year olds that sound like that. They just won't admit it. I'm 70 and surrounded by old people who pathetically think they're young.
I find that true also in TV . Look at Archie Bunker for example. He's supposed to be 50. I'm 56 and when I watched it with my son he couldn't believe how old he looked compared to how I look at the same age 😁