Haven’t watched the video but my guess is Prop 2.0 started crying and was hungry so she grabbed him out of the car seat and is nursing. I’m assuming they aren’t going very fast in the car in the safari portion. I’ve done the same with my baby during drive car through activities (our zoo did one, kids were unbuckled and able to move around the car. Christmas light drive throughs, etc). Usually have to go super slow during that.