The authors don't have an early-retirement plan. They have a plan for how to stop working for the next 15 years, while raising your kids, when you're 30.
Reading the book just 3 years after it was published, the authors' math already isn't mathing. They estimate they will spend only $39k per DECADE to own a car (the cost of purchasing cars themselves AND all the maintenance). They estimate clothes—including winter coats, boots, and shoes—for FIVE PEOPLE will cost only $1,224/year ($102 a month). They estimate that "kid's toys, activities, supplies, etc." for THREE kids will cost only $82/month.
Healthcare costs are not included at all; the "health + fitness" category is only $1,296/year for FIVE PEOPLE and only lists things like classes, softball, and golf. The authors apparently don't plan to spend any money on dental work; neither for their 3 kids, nor for themselves, when they're 50, 60, or 70. They also throw out generic financial estimates meant for seniors, like "the 4% rule", treating it as a magic infinite money glitch.
And that's the core issue with the authors' plan. It combines the positives of retiring at 65 and the positives of retiring at 30, and ignores the negatives of both. And so their financial plan is that of a 65-year old, who needs the money to last for only for the next 15-20 years, not 60 years. And their planned expenses are that of a 30-year old parent of little kids: just have netflix and $82/month for toys and you're golden.
The authors go into an absurd level of detail describing their granola bar shopping habits, yet completely absent from their plan is what and how they will do—well, ANYTHING—after their kids get a bit older. When little Johnny needs his first car or little Tiffany needs dancing lessons, they will all share that $82/month budget. Once the kids move out, the authors themselves will presumably get even deeper into their couponing, gardening, and canning—which they describe as their "hobbies".
The authors still have a full-time job of an amateur farmer, a landlord, and a handyman—they just call it "retirement". They keep yammering on how they "did not have to sacrifice anything" while in the same breath explaining how they downgraded to a SINGLE 4-year-old used phone with no data plan that they share between the two of them. The book has detailed information on how much money the authors save by GROWING GARLIC instead of buying it.
That's the kernel of the book. The authors call it "retirement", but what they present is a lifestyle most people would associate with someone who's budgeting to pay off massive credit card debt. If you pick up a debt management book, you'd get the same advice: plan your meals based on what's on sale, go to multiple grocery stores to shop coupon items, do your own car maintenance, meal-prep and freeze stuff. Oh, and yes, work your garden and put what you grow in a can, to survive the winter.
I think they are pretty happy with themselves right now, while busy raising kids. But over the span of 10, 20, 40 years, people change. Their interests change, their kids move out. And the authors have already locked in their lifestyle of couponing and canning until the grave.
I'm not claiming their "5 years to freedom", early-retired life is impossible for an average Canadian to achieve. I'm saying most people wouldn't want to.
Lastly, I join other reviewers in highlighting the negative moral implications on two points in the book. The authors' glee at their "retirement" opening up the door to thousands of dollars in CCB child benefit government program meant for low-income families and their breathless recounting of how they jacked the rents so they could live off fewer rental properties.
Get a job!