There was a question on here recently about somebody being worried about having taken a job at his dad's company. Somebody replied he should not worry if he does not have a C-Position. I am in a similar position, but would be taking a C-Role (CEO). I have no prior experience as a CEO, and I've just finished university. I do have a degree in the industry (CS), but I have not studied business / economics or management.
It's a small company and things are relatively straightforward. I would also have a co-founder there for quite some time, helping me out. I do not doubt that I could, in principle, do this without much experience (at least for some time; of course things can go wrong, but it's not my biggest worry right now)
However, I am worried that, should things fail, I will be in a very peculiar situation, having taken over my dad's role as the CEO, without any prior experience.