Evidently it's somewhat odd, but the suburb we bought in has an elementary school and middle school built right in the middle of it. It's very walkable for a large portion of the neighborhood (though, it's the outer Seattle area - so the rain does keep many from walking for a large portion of the year, anyway).
I certainly don't think we put our child's mental health second. I'm not sure how to quantify that for a stranger on the internet, nor do I feel the need to... I am in the 30-50 range, though.
The thought of living in Seattle, personally, is abysmal. It smells of piss, all of the time. The homeless have taken over and there are no decent programs to help them out, nor do there seem to be any effective programs on the horizon. City corruption seems to take care of that. Business is taking a nose dive. There are no grocery stores. Food deserts are a very real thing. Rent is unimaginable. You can buy in the suburbs for a fraction of the cost of renting in downtown, easily. People in the area are not the most outgoing in the first place (the colloquialism is the Seattle Freeze), but add into that the normal distance of city dwelling and you are almost robotic to each other. While public transport is lacking (to say the least), it is there and available from these horrible suburbs you have warned us about.
The dream of city living seems, honestly, to be for the VERY rich or the young and naive, to be honest =/
EDIT: spelling