it has?
Can you give some actual examples.
Sure. The government was pretty much totally uninvolved in the development of the personal computer, Apple, Windows, and most of the software we take for granted. Initially only the wealthiest people could afford them, but interested in making a product appealing to everybody, the private sector kept improving, streamlining, developing potential until few people now cannot afford a computer or some sort of tablet to access the internet and the almost unlimited information it makes available to us.
Ditto the mobile phone. The first models were big, heavy, clunky and limited due to limited network access. All you could do with them was make and receive telephone calls. Now the mobile smart phone is essentially a hand held computer capable of many functions as well as access to the internet with call and text and video messaging functions and almost unlimited free and affordable apps to use and there are models affordable for just about everybody.
I already gave an example of the gasoline powered automobile that the government was totally uninvolved in. The earliest models were available only to the rich. But by the time the private sector improved and streamlined and mass produced them, most people could and did afford one, at least one per household.
When the government got involved in managing education, it became unaffordable for most without some kind of subsidy or going into debt. When the government got involved in healthcare it became unaffordable for most without some kind of subsidy or going into debt or without buying insurance that was far more expensive than before.
Government shouldn't be doing anything that can and will be done more effectively, efficiently, economically, affordably by the private sector.
The private sector has profit motive and therefore will figure out how to make products and services attractive and affordable so many will buy them.
The government we have now for the most part doesn't give a shit how much something costs or whether anybody actually wants it or whether it actually is a good thing.