I can remember hearing that our local Petco had told someone they could just feed a snake crickets too. I don't know if it was genuine ignorance,
or because they had an incentive to make a sale & just told the buyer what they wanted to hear. Many people say they object to feeding "cute little rodents"
but there's no excuse to mislead buyers to make a sale...it's horrible for the snakes & makes me want to scream.