...and cars also changed very rapidly during early years, not to mention how often they would break down and how they basically required the user to be a mechanic to repair them on the spot for many years.

So the analogy isn't all that good is it?

You are comparing immature tech with very mature tech.

What technology emerged into the market fully finished?

If your point is "don't use technology until it is mature" then you are of course free to not use it for now.