I don't really feel like my mechanics have declined as I've gotten older, but

It just feels like kids these days are really good at gaming.
There were games I was at a national level in when I was younger,
and I was quite famous in my local area,
but watching how kids play nowadays, they are truly skilled.
It's not just because of their mechanics; it's just that anyone can easily enjoy games anytime, anywhere,
but it seems like everyone is just really good at them.