Level Up & OSR Enthusiast
D&D PCs have always supported high magic. The actual setting? That has varied quite a bit, and the current version as shown in the movie is a high magic world.The rules have never supported that though - even back when there where only four classes, half of them where spellcasters. D&D has always been high magic, if you want to play it otherwise you need to make substantial alterations to the published rules.