There are certainly other financing models. Acquaintances have set the rate so low that they will probably not pay off the house during their lifetime. Just get advice from a financial advisor.
If you don't have anything else up your sleeve (severance pay, inheritance, funds, stocks, whole life insurance, other real estate, etc.), that is extremely short-sighted and, to put it mildly, stupid. We all know how well this other financing model worked in the US. Real estate does not only know the way up, so a sale is always guaranteed to be profitable. Unless we are talking about a prime location and you do not care about keeping the total repayment amount comparatively low.