We just got back from a Williamsburg trip last weekend. We have 3 boys, 14, 12, & 9.
To my surprise, they enjoyed the Witch Trial and were slightly intrigued by one of the Ghost Walks. They enjoyed seeing the public lynching of an effigy of the leader of parliament and seeing the blacksmith, gunsmith, and gaol. By the time we hit the 2nd (but different) Ghost Walk they had had enough and started to rebel in typical teen and preteen fashion. There was a limit to how much they wanted to learn on vacation.
Be warned that some of the extra ticketed events (ghost walks, tours, etc. etc) are limited and fill up fast.
We wanted to do an Escape Room type event but it was sold out on the first night and were told it only ran Thur-Sat. Similar experience with the hands-on candlemaking.
Do get tickets for a carriage ride, this was enjoyed by all.
We were unable to do Chownings, as it doesn't take reservations and the 45 minute wait interfered with either our hunger or ticketed event times.
We did manage to get reservations at King's Arm. We enjoyed the experience but found it to be way over-priced. The boys "steaks" were awful but my Hunters Pye was very good and my wife's Salmon was so-so.
Our best meal was a short walk into the shopping district at Dog St. Pub.