As someone who works as a broadcast engineer at a Major League Baseball stadium and has interacted with numerous ballpark security employees, the use of facial recognition software is quite widespread in professional sporting venues, both to identify "do not fly list" individuals (banned, trespassed, known terrorist, etc.) and "VIP list" (local and larger politicians, high net-worth individuals, celebrities, corporate magnates, etc.) people.

It also dramatically reduces the amount of time it takes to locate missing children, which is an almost-daily occurrence.