IMO a "good" pilot would want cockpit instrumentation that can provide additional margins of safety. The glass cockpits in use today can improve situational awareness and presumably safety, although sometimes at the risk of decreased pilot proficiency.
For learning basic attitude instrument flying, you don't need a moving map. In fact, avoiding the moving map will force you to focus on the fundamentals and save you some money.
As for flying in IFR conditions, if a pilot isn't IFR rated, its illegal. If they are rated, they should be proficient in any aircraft/cockpit setup they happen to be flying.