As a former bike shop service writer and parent, I recommend waiting until your...
https://nova-wiki.win/index.php/Can_I_Take_a_Baby_on_a_Bike_Seat_on_a_Plane_Trip_Vacation_Rental_Bike%3F
As a former bike shop service writer and parent, I recommend waiting until your baby can sit upright, unsupported, with strong neck control. This milestone usually happens around one year old