A friend of mine is flying to Canada this fall with her 3.5 and 5.5 year old. They both normally ride harnessed in GNs. I think she thought she was not going to bring any seats for them on the plane, but I told her, she for sure needs one for the 3 yr old. The 5 year old is probably ok. She is going to start booster training her in the other car. She thinks family in Canada have seats they can use while there. She is going to check to make sure, but I told her, they are different there. I offered up my Scenera if she wants it for the 3 year old. He's little, 30 lbs now and not very tall. Opinions??