It depends on where you start. If you create a brand new band and immediately start trying to get openers with Metallica and travel around the world, you're going to go bankrupt before you even release an EP.
If you start a brand new band and play at bars, local clubs, lounges, and put in for openers at music festivals happening within a reasonable area (and there's always gonna be one at some time or another you can drive a van to), you can save up enough money to tour if you're good enough.
Recently I heard someone from Avenged Sevenfold explain this is the main reason they stopped touring even though they were successful in the 2000s.
Or can the entire band ride around in an RV some hippie fixed up for the tour and park it in KOA camps at night?
If you start a brand new band and play at bars, local clubs, lounges, and put in for openers at music festivals happening within a reasonable area (and there's always gonna be one at some time or another you can drive a van to), you can save up enough money to tour if you're good enough.