Andy Griffith has been married three times. With his first wife, Barbara, he adopted a son, Andrew Samuel Griffith Jr. (born in 1957 and known as Sam Griffith) and a daughter, Dixie Nan. Sam died in 1996 after years of alcoholism.
It is perfectly legal for a rental property owner to require the rent payment in full on or before the first of the month and to not offer any sort of grace period. Even with a grace period, the rental property owner legally has the right to serve notices regarding nonpayment of rent. I have seen many examples of landlords tightening their policies and rules, including a reduction or elimination of grace periods.
Student loans resemble credit cards and personal loans in one important way: Their due dates are buffered by grace periods that typically last for 30 days. In other words, a past-due student loan payment isn't technically delinquent until after the passage of a month-long grace period.