How it works
Means are the coins that come in each month. Nia, Obi and Pax each earned ten.
Spending less than you earn leaves a gap. A small gap grows a little every month.
Spending over your means has to come from savings or a loan. Owing is ordinary, and nobody is bad for it.
Living below your means is not being stingy. Treats are fine, because you choose what matters most.