New shooters should start with Iron sights. Once they have mastered the fundamentals then they should consider using optics and electronic aids.
Fixed Iron sights never fail. They don't get out of alignment. They do not fog or break and the batteries do not run down.
In the early days of the IMP. new recruits were issued bolt action rifles until they proved they could shoot effectively. Only then were they issued semi autos and later automatic weapons. The same goes for all new shooters.