You won’t be able to scan kids, pets and some adults due to movement. Handheld scanners require that customers remain motionless for upwards of a few minutes or the 3D scan will not process properly. Some adults are capable of standing still for this period of time, but from our experience pets and kids are not. The slow scan time of a handheld scanner also means it is only feasible to capture ~6 scans/hour.
Twindom Knowledge Base
Why shouldn’t I use a handheld scanner to scan people?