If babies (under 2 years old) do not have their own seat on the plane, they do not have the right to bring carry-on baggage and they should have to share baggage with the person responsible for bringing the baby with them.
However, you can bring free of charge two baby equipment items (a stroller, a car seat or a fold-away cot). The items must be tagged at the check-in desk. Once tagged, the stroller can be carried up to the boarding gate, where our staff will take it and stow it in the baggage compartment. Once at your destination, you can pick it up at the baggage carousel.