its unfair to compare a legacy that ran for more than a decade to its decendent that is litetaly less than a year old. Right now the boruto series is establishing its charecters so that the readers and viwers can get an attachment to the new charecters and story. Plus is it that hard to imagine the world is now safer, espesialy in the city that majority of the naruto series heros live in. literaly the current 2 most powerful people on that planet live there.
Also if you've noticed they are already doing advances ninjutsu in the academy in Boruto that Naruto didn't even know till he started training under Kakashi. (for example walking up trees and walls)