Because virtual reality can cause the illusion of achievement without experience, there is the danger that perception of personal development could be based on delusion. Self-esteem (e.g. winning a sporting competition) or self-gratification (e.g. giving birth to a baby) may be able to be experienced the "easy way", with little understanding of undesirable side-effects. There is already some concern over the effect of arcade games on eyesight and mental disorientation, but there is little official monitoring. The medical profession does not appear to be interested in research into the psychological and physiological effects, and there are no established health and safety standards.
In Germany, a man drove his car into a ditch because he thought he was still in the virtually-real world where he could come to no harm.