The root cause of the issue here is that enforcement against scams no longer exists, so banks have no choice but to take matters into their own hands to try and prevent their customers from falling victim to one.

In a functioning society scams wouldn't be as prevalent because law enforcement would take prompt and proactive action (which also acts as a deterrent and reduces the number of scams further) and thus banks wouldn't need to do this because getting scammed would be such a rare occurrence.