The OP specifically asked if any of the three areas they mentioned was “family friendly” and having spent many weekend days there, I can vouch that Coronado is indeed very “family friendly.” Of course, their biz partner can tell them much more. I know a few students from my area that are going to school over there and they do this bridge commute twice every day because they think the Coronado schools are “worth it.”
I’ve lived in this county for nearly 40 years (probably longer than the vast majority of these “North County booster Piggs” have) and understand intimately what life is truly like in the major SD Metro communities, South County and parts of East County. I don’t believe in “steering” and feel that the OP will be able to see it (and drive or sit in traffic) all by themselves when they actually get here to look around.
I have nothing against North County (or the far reaches of “North City”) except that in this instance, living in those locations could very well unduly complicate the life of the worker in the family.
flu, last time I looked, you weren’t left in charge of directing this discussion ;=]