Hold on now. 22 is absolutely still a kid! I have to say it's easy to lose perspective because they're professional athletes doing as their job what regular kids do for fun.
If I think back to my mindset at 25, I felt so much more mature than at 21-22. Jump ahead another few years and at 27-28 I'd look back and think how just a few years ago felt like being so old and yet I was still so inexperienced. Same pattern, even heavier realization now at 31. In my profession and my personal life , those early twenties were so vastly different. I was a kid then and 17-18 year olds were babies in comparison.
I think that's a sentiment a lot of us feel when we hit these milestones . And these players are no different. We see some grow up much faster from a footballing perspective and become world beaters before 25. But they're still mentally, emotionally young adults with important maturing yet to happen...the kind that helps them become consistent, more intelligent in their play.