How many people go to meet the store manager?
Is the store manager attesting to the kashrus of everything he sells?
1. plenty of people aren't meeting owners of home business many are long distance transactions like food for their child in yeshiva /seminary or people ordering food for vacation. In fact that's who many of these businesses are catering to.
2. I sure hope so. If not, that should speak to their neemanus unless your talking about packaged products with hashgacha. But if store sells takeout and the owner doesn't stand behind the kashrus, that would be bizarre.