Diggity said:
it's an interesting phenomenon.
On one hand, it makes a ton of sense to stay in your current home with low rates.
On the other hand, the neighborhood you can afford in your 20's/30's is typically a lot different than the neighborhood you would like to be in when when you're 40/50.
In the old days, you would see people "move up" every 5-10 years or so.
I think a lot of people are skipping/delaying that move up and staying in areas they don't necessarily love because of the "golden handcuffs" that a 2.xx mortgage provides.
Certainly with some people I know, they've told me they are in a house they had before kids, and now want more space after the kids came.
Luckily we had that foresight at age 32 after owning our first home, a 1500sf 3/2, purchased at age 25.
We bought this home a few years before our first kid, but we knew we wanted kids, so it made no sense to buy a home that we'd feel cramped in after kids just to have to move again. Plus we knew a basement finish would give us that extra space if we ever felt cramped.
13 years later and we still love this house and location.
We finally just finished the basement this year, gaining an extra 1600sf and adding a bedroom, bathroom, 2 large living areas, and a kitchen. Cost us ~$40/sf.
Last year we 'gutted' our backyard, completely renovated it and spend a ton of time out there now. So yeh we've put in $100k to the house in just a few years, but still the obvious choice over selling.