No, "medicine" does not proscribe that. Doctors do. And some doctors jump to medication immediately while others try the non-medication approach first. It also always depend on the level of deviation from the norm you're showing - for middle to large deviations pretty much any doctor will likely choose the more cautious and "proven to work" approach.
Please don't act as if "medicine" was a thinking being. Maybe choose some other doctors while you're at it. It's not as if they haven't their share of ineptitude as well.