Anticipating the shot is one of the biggest hurdles to accuracy for a new shooter. Integrating subsonic ammunition and a suppressor into a teaching environment can help someone learning to shoot by reducing anticipatory flinch. Shooting unsuppressed supersonic ammunition can often be intimidating to new shooters, and the argument can be made that it is an obstacle to a new shooter enjoying and/or adopting the sport long term.
SUBSONIC AMMUNITION: Advantages for New Shooters
Reduction of anticipatory flinch
Inherently hearing safe