Well, go back a few decades and all businesses were pretty much debt financed. VC wasn't around - maybe a few friends and family rounds, but bank debt was the only option for growing a business (at least until you got to the public markets).

This seems to have been lost over the past 20+ years. I wouldn't even think about going to a bank with a smallish business for financing, you'd instantly think of equity funding instead. Hopefully this changes because debt really is more sensible for many startups.