Kurtis connorrrr

why are all of the commentary youtubers the saaaaaaaaame like danny and all of his friends are kind of scarily simmilarrr like nick, chad chad, drew, kurtis, jarvis, ect they're all so similar! same thing with all of johnnies friends content like jake tara those two boys those tripplets all of them have such similsr content, its so weird but maybe its just a popular style