I can vouch for Mt Washington! My wife and I moved here to start a family. We wanted somewhere with lots of space but we still wanted to be within city limits and close to public transit. It’s lovely here. We’re a ten minute walk from the light rail and Mt Washington village, which has a few bars/restaurants, but are surrounded by the woods. Lots of yard space for gardening and composting. Pretty quiet area, not much traffic, mostly people out walking. Plenty of room to start a family and decent neighbors. Highly recommend! One thing though is that people don’t like to leave Mt Washington so it can be hard to find homes for sale.