I looked through the search but couldn't find the answer to this. I was interested in getting the combined ticket/passaporte, but it looks like it's only available for adults. Does that mean I need to purchase two of those for my kids too in order to get the skip the line features? Or do I buy the combined tickets for the adults and then the 'free' tickets for the other places for the kids? Or maybe something else?
I think this what I think you do:
When you purchase the Passepartout ticket on the B-ticket website, you have to choose an open time slot for the Uffizi: you'll be visiting that museum FIRST. For full-priced tickets, you'll choose the "Passepartout Named" option under the appropriate open time slot. Under that option is the "Passepartout Free Named" option: choose that for the kids.
But hopefully someone who has actually done it can jump in here.