Yes, this industry is still very young. Another way to think about it is that we still build software the way they built cars in 1905 - to a large extent, most products are build from scratch by hand to serve a very specific set of requirements.

Admittedly OSs, compilers and frameworks are significant steps forward from pure Assembly language, but we're still a far cry from how autos are built today: automakers build a "car platform" by composing different systems, which themselves are composed of assemblies and sub-assemblies and so on. The platform is then targeted towards a specific application by bolting a car body on top, this body is usually separate from the core engineering systems of the car.