That's almost certainly the case. I just find it a little odd. For most jobs like this, training costs are negligible - usually a day of watching videos. Food services probably have an extra day for health and hygiene regs, but it's not a massive burden.
As long as the guy has half a brain and is reasonably personable, I'd rather have someone like that for 3-6 months than the standard buffoon who will last just as long before getting fired/bored of working, and do some damage in the process.
