Why around the holidays in the evenings can't they have more cashier's working instead of standing in line to check out for 35 mins

The staffing is done by management. They may need some advice.

Welcome to Wal-Mart

Cause Walmart is to cheap to actually train employees and rather cater to illegals

Corporate determines the amount of hours available, and the schedules themselves, not mgmt within the store. That coupled with call offs etc. can create chaos.

Lack of help