No debt = no worries.
I have an engineer friend I used to work with. He bought his first house with cash, saved up after about 10 years of working. Cash....paid for the house. Then he instructed his wife to make a "house payment" of what their mortgage WOULD have been, going into their bank account. He invested, and at one time had hundreds of thousands of dollars. Then his wife left him, taking the kids and extorting a house and a lot of cash out of him up front "so I don't have to get alimony payment for life...(the lawyer line). He got depressed and lost his job. At 50, he couldn't find another one in the Southwest. He went from $90K/yr to about $9k, just doing odd jobs. Ironically, he wouldn't have had to pay much alimony when his salary plummeted. It's been about 15 years now. You know what? He's happy, healthy, has a great girlfriend, does lots of fun stuff. Because he never had debt, and refuses to ever borrow a dime. He's proven to me that if you don't owe anything, you can live VERY cheaply. You just need food, and a little shelter. He lives better than a lot of couples I know where both work, with big, important jobs. But they have debt for their cars, furniture, homes, boats, cameras, vacations, etc.