[Damifino]

The larger problem is that there isn't enough new construction being built to meet demand from Gen Zers and millennials or from baby boomers who would want to downsize in retirement.

This person knows nothing about new home construction. This is no economy for a builder to be burdened with the interest payment on spec homes. However, if a customer wants a home, any builder would sign them up today if they have the $$. If you want and can afford a new home, you can have one.

[Openurmind]

And size is not always an optional choice... Local building codes dictate this. See #28.