I stumble upon the Youtube channel Our Rich Journey after watching all the Ramseys movies on their Youtube channel about being debt free. Our Rich Journey is about a couple with two kids who retired at age 39 by hustling a lot besides their big Jobs. House swapping won’t be the one I will be doing, but I hope to reach FIRE also like them. They retired early, but are still active doing a lot of things and that is what FIRE is about doing the things I like the most and not about sitting in a chair doing nothing! (UPDATE: Sept 2024: student debt €0 euro).
With the financial freedom they got by reaching FIRE the couple had the opportunity to raise their two kids well educated about finance and having a lot of time to spend with them. They even have their own youtube channel Our Rich journey Junior.