With your business, passing it down in the family has always been your plan. You built this for them. You want to do more than just provide for them when they're young. You want to give them a way to earn and find financial security for the rest of their lives.
Now, you cannot force them to want this, as well. They may decide they want to take a different path in life. But you can still give them the tools for success and help them work toward that goal.