What to do if tenant falls a month behind

[Rick M.]

A few questions below:

Are renters in general bad at managing finances? My unit cost 3k/month to rent but you can get cheaper units for much less. My tenant is constantly late, which is a clear sign of financial issues. He is too prideful to admit he doesn't have the cash and even had a family member send part of his rent for one month. Now he has a baby on the way, so I know there will be more expenses. His lease is expiring soon. Is it wrong for me to end his lease considering he has a infant?

Lastly, if he ends up failing to pay rent and is one month behind on rent, do I make him pay both months together as one payment or accept 2 different payments (one for each month)?