score:3
For what it's worth, I have never been questioned critically when traveling alone or as a couple with an infant or toddler. Probably possession of the child + the child's ID and travel documents (passport/eTA and birth certificate) is more than adequate.
By the way, make sure you have a ticket for the infant- it is required for international flights even when the babe-in-arms does not occupy his or her own seat. There may be some cost involved for that.
Upvote:1
Thank you all for you answers!
Feedback after the travel : presenting the infant passport (with no indication of residence or adres) as well as the passports of two adults (one male one female, only one of which shares the same last name as the child) was enough to grant us access to the country.
Although I do trust the professionalism of border agents, I still wonder how these documents proved we were both parents traveling with our child. It could have been my brother (sharing my last name) and an unrelated woman, and the documents would have been very similar (and the attitude of a baby after a 7h flight during which he did not sleep is difficult to gauge, at best).
Never the less, we had a great stay!
Upvote:2
If the child is travelling with both parents, a birth certificate should suffice.
If the child is travelling with one parent only or with a stranger, then a legally notorized permission on paper by the other or both parents should be sent along.