Flying short haul in August. DD will be 13 months. She is a v. large baby. She is crawling and increasingly independent. If she doesn't want to sit on your lap she won't. When you fly with babies do they literally sit on your lap with no seat belt? If so she might wriggle off?
Just wondering whether to book a seat for her. If we booked her own seat would we need anything extra or does she literally sit in the adult seat strapped in like an adult?
Sorry about all the questions! 
We are clueless having been in lockdown her whole life!