That's orthogonal. What you really mean is that you want high(ish) voltage to distribute power in a home, in order to mimimize losses due to wire resistance over distances of dozens of meters.

You don't need AC to do that. In fact, with modern power electronics, the switching converters we now use for supplying LVDC to our devices can work just as well with DC as with AC input power.

The primary advantage of AC over DC is that it can be converted between voltage levels easily with transformers. But today, we can do the same thing with DC using DC-to-DC converters. These didn't really exist in an economical way before a couple decades ago, maybe even more recently.

If for some odd reason, western society decided to re-engineer and replace the whole power grid, it's quite likely I think they would simply switch to DC for everything. With deployment at that scale, the cost issues with the equipment should go away, making it no more expensive to replace everything with DC converters than transformers. DC is more efficient than AC because it stays at its peak voltage, and because it has no skin effect. But the technology needed to make it inexpensive to use for power transmission has only been around for a somewhat short time (namely, modern power electronics). Up until recently, it was simply a no-brainer to use AC because of its simplicity in generation, transmission (with transformers for stepping up the voltage), and usage (with AC motors).