> Let's find a way to reduce or eliminate the need for personal hygiene while we're at it.

Definitely. It's another maintenance time waster, another upkeep you have to pay. What's worse, only a fraction of it is needed for survival, the rest is just an elaborate social signalling game with almost unbounded costs in time and money.

> We could theoretically still have sex virtually, too.

Only if it offers improvement over status quo :).