First, when I have kids will they act like kids or will they be normal AI? If they acted like kids they would laugh and point and would want their parents to look at them doing something. They would also get bored, cry, and get angry.
Second, I would like to be able to read stories to my kids at night.
Third, will you be able to give your kids chores like having him milk goats, feed horses, and going across town to fetch or give something from/to a storekeeper?
Last, I saw islands on the map and wondered how people get there, I mean, you're not going to swim all the way! So, boats are needed. What if you're a merchant? A merchant would need a boat. I guess if you're a poor man maybe you would have a small raft with oars. However, if you have a lot of luggage you would need a large sailing boat and maybe sailing or working on a ship could be a job? a great feature to add is water that looks as good as Sea of Thieves.