Had collies growing up, but lived on a farm. They lived outside in the day and came in when we all got home from school, spent the evening playing with us and slept in the utility rooms. They were family pets that did a bit of farm work, as opposed to working dogs that are pretty undomesticated.
But we live in the suburbs now. We have a garden but not acres of land. And we both work. Would we be stupid to consider a border collie as our family dog? Collies and labradors (gun dog/ family pet) are all I've known.