I can't see the point but it's harmless. I can imagine children, of an age to be allowed out with friends of course, not little ones, finding it fun for a while. Just a fad.
Its mainly young Adults Brownie, who as children played with the Pokémon cards and collected them.
They are in their twenties now.
I have been giving it a go in my lunch hour, it uses up some spare time and I get some exercise

I only grew older, i've never really grown up though.
I also play computer games like Dragon Inquisition and the Witcher
Age is just a physical thing, I love playing.
At least Pokémon go involves some exercise
