Huey, Dewey, and Louie Duck (1987)

In the Last Adventure, Bradford says that Huey, Louie and Dewey must to go to school. In the original series Huey, Louie and Dewey went to school like Doofus, Bubba and Webby. So, Bradford has right. But, why in the 2017 series, the nephews don't go to school or don't play Baseball like in 1987.