Most flying schools have a simulator of sorts. They are flight training devices. Before a student's first flight in a real aeroplane he/she/they/should be given several "simulator" sessions in the clear so that when the big day arrives for their first dual flight in the real thing, the student is entirely familiar with terminology and positions and operation of all applicable bits and pieces that form the cockpit. Saves money in taxiing time and holding point time.
Fast forward to their first dual navex. Before that occurs it is back to the FTD and undertake several hours of simulated instrument flight including unusual attitude recovery. No need for a full flight expensive simulator as all you need to learn is instrument flying skill and a standard no motion FTD is good enough. All this unencumbered by an instrument flying hood as the instructor simply selects IMC on the instructor panel.
By the time the student is ready for his first solo cross-country navex he will have at least the rudimentary skills to handle inadvertent flight into IMC safely.
Flight under the hood or using foggles in a Cessna or Warrior is really a waste of time as it is all to easy to peep outside from under the hood. FTD are a relatively cost effective of learning to fly on instruments and can be flown dual or solo. What is needed though are instrument capable instructors who may not necessarily hold an instrument rating but who have the ability to teach instrument flying in a FTD. All grade 3 instructors should have that skill.
It follows that instructor course syllabus must include at least ten hours in a FTD and the demonstrated ability to teach instrument flying in an FTD. With all that basic grounding on instrument flying hopefully it would translate into losing less aircraft accidents due to VMC into IMC flight.