Of course they do ...this is the 21st century.
They live comfortably and are raising two wonderful boys who do not go to government school. -- The irony is they both work for the state. My son is a Fire Department Captain. his wife a lobbyist for CPS. They feel a calling as did I when I was younger.
The point of the article is that early savings, or starting NOW whatever the day is, will get you a long way with time. Saving is a habit. Not touching it except for capital improvement is a habit. Diversification to avoid down turns is a habit.
I can see you wish they had this one habit in their well behaved life — perhaps they can pick it up because, of course, they never listen to we parents.