Perhaps, as you suggest, Wal-Mart should hire high-paid, well-trained executives from PayPal, Zelle, CashApp, Venmo or other services. God knows there's never been fraudulent transactions or scams on those platforms.
You obviously have a beef with Wal-Mart, writing essentially the same comment 4 times and seemingly ignoring the fact that virtually every supermarket and check-casher in the country has a similar employee running the Western Union desk.