I'm going 91. I was there. I wasn't 20, but I was closer to 10. And 10 years old in decades past is about equal to 20 years old today, we experienced more. We had more freedom, we made more mistakes. More of us were likely beaten/raped/killed or otherwise died.. but we simply were less childlike, the generations that had analog childhoods. Less coddling. That was more true the further back you go, but there was a steep decline for children born around 1990 or after due to many factors. At least that's what I've observed.
Those quality of life improvements on that list are in reality pretty sad compared to the loss in social cohesion and quality of life in ways that matter more. You would think we didn't have indoor plumbing or antibiotics. We were in good shape. But the difference in pre and post 9/11 America is stark. This place was basically ruined on a social level, pure fear and panic, and it remains in different forms.
Now if you asked me if I'd rather be born in 1971 or 2021? I would say 2021. Because the last 20 years have been throwaway decades. Someone 20 years old in 2021 missed ALL of the good times, never saw America as it was, and has and will spend most of their life behind the 8 ball.
If you're born today, while there could definitely be more calamity, there's a good chance things turn up from the malaise of 2001-2021 in the next two decades. At least as it pertains to the working class. Which is most of us. Its been a great two decades for those that were running the show. But there's a reason why overall sentiment is and has been negative.
I'll take 20 in 1991, or 20 in 2041. But not 20 in 2021.