You don’t. Little one just sits in your lap. Or in your case I’m assuming you’ll have a soft carrier so you just tie her on. Although most ppl with 4 month old bring their car seat because it attaches to the stroller at that age.
Hey Euna ! We offer that service! Call or text 647-321-7205 and we’ll take care of everything! 😊
i think its only available in the US for uber, try contacting them though