>>718594961
I still do just fine in my 30s. I'm sure my reaction time is not quite what it used to be but I'm still usually in the top 10-20% in a match if I'm trying.

The main thing is that in order to be pro at PvP games you have to play several hours every day to build and maintain the skill. At 30+, most of us just don't have the time or energy to do that anymore, so we get a little rusty.