Brrrr method question?

[Sam Deb]

So I’ve been researching the brrrr method, and have found it very helpful, I’ve learned that you can refinance almost immediately using hard money lenders. My question is why does it take so long for people to reach 100 doors? If I was to buy my first home fix it up, rent it than refinance immediately, it should only take 3 months or so to rehab, pull out my money immediately, so I could have about 4 doors year one. If I don’t touch that money and keep reinvesting it, by the second year I should have bought around 10 homes, than 20 my third year, 40 my fourth and so on and so on. What am I missing here? Are many people conservative and not want that many doors. And yes I do want to become very wealthy from real estate, I grew up poor and would like nice things so please don’t come for me on that.