Body cams can already be had for cheap Electronics wise, they’re not complicated or special. Yet, they’re still not in widespread use beyond police.
The reason police body cams are pricey is because 1) “military/police grade” rip-off premium pricing and 2) The housing has to be designed to be waterproof, shockproof, dust proof etc because of what they do on a day to day.
A retail worker is not going to need this level of “proofing” because they’re not running through an alley or something in their day to day