I built and sold a parking enforcement product that uses ALPR from a mobile app.

In my customers experience, cars missing “normal” license plates (those without special characters or sports themes) are few enough to not make an impact on broad goals.

New cars missing plates completely would be a similarly low portion of consideration. Enforcement of cars missing plates illegally is the duty of patrolling PD.

Which is to say, drive around without plates long enough you’ll get pulled over.