I think the key there is "all the time" - when we lived in the middle of a European city we used car-share, and the car seat was a bit annoying but since we wer

I think the key there is "all the time" - when we lived in the middle of a European city we used car-share, and the car seat was a bit annoying but since we were using it maybe once or twice a month tops it just wasn't that big a deal. Though we were using the seatbelt mount, and not ISOfix.