[goty2]

I am disagreeing with the parents point (or not really because they were talking about doing it as a hobby, which is great).

Yes, you can do design prototype revision A, B and C, then do production prototype A, B and C, and finally production version A, B and C. But then you have spent a significant amount of time and money refining prototypes and adding features. That forces you to large production runs with huge risk, because you have already made the investment. What I am saying is that you should just make the production prototype with less features and ship that. Because that is how you go to market quickly, which is usually the larger point of such development.

This is also why Shenzhen wins over hackerspaces (which are also great btw) but that is another story.