There are a lot of young families with often very different needs and values. It might be the case that most of the young families you know aspire to the portrait of a very stereotypical white Canadian household you've painted (which there is nothing wrong with), but consider that it might not be representative of Edmonton as a whole.
As just one example, there are lots of immigrant families for whom a backyard hot tub doesn't really register among the other things they may care about:
- proximity to cultural/linguistic enclaves (and associated school programs)
- easy access to post-secondary by transit (often very important)
- walkable communities with good transit for live-in elderly relatives/other family members that can't drive.