https://aixr.org/insights/7-myths-and-misconceptions-about-vr-training/

1. VR Training Is Expensive, Especially At Scale

2. VR Training Requires A Lot Of Space

3. VR Training Is Distracting And Counterproductive

4. VR Training Is Unhygienic

5. VR Training Sessions Are Very Long

6. All VR Training Makes Users Sick

7. VR Training Isn’t Here To Stay

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more on VR training in this IMS blog
https://blog.stcloudstate.edu/ims?s=vr+training