Gasoline is absolutely not that dangerous, at least relative to the risk involved every time one drives a car. For igniting gasoline fumes, a spark is almost always necessary. Realistically speaking, a lit cigarette has a better chance of setting a nearby trash can on fire than igniting the gasoline fumes. If a person were to spark a lighter to light a cigarette that'd be a different story.
https://www.pennlive.com/midstate/2010/03/gas-pump_fire_that...
https://content.nfpa.org/-/media/Project/Storefront/Catalog/...