How do I deal with the fear of taking over the family business?

The business isn't yours yet, but the fear already lives in you as if it were. That tells you how much it matters, and how seriously you take the people it holds up. Fear like that is not a flaw. It is the shape of responsibility landing before the job does. You will not have to carry it all at once, or alone. The day it falls to you, you will have years of watching, a team around you, and the same steady hands that got the founders through. No one steps into this fully ready. They grow into it one decision at a time. So stop rehearsing the whole weight in your mind. Pick one part of the business you don't yet understand and learn it this month. Fear shrinks when it meets real knowledge. Trade the imagined burden for one concrete thing you can master now.