I think you are too optimistic. While we can do everything you state, I don't think there is enough demand. Most people don't want to be a pilot these days, the exceptions are not enough to support all the R&D needed to get there. Likewise, the other niches where people use airplanes for short flights are not large enough to support the R&D needed to get there. So small flights will be stuck with 1960s airplanes they keep rebuilding, with a few small manufactures doing small refinements on designs that are decades old, as a major redesign is just too expensive. Once in a while some rich person will finance a new airplane, but it will always be a money losing investment and so only flying enthusiasts will spend that money.