"Old guy still doesn't understand how anyone could be working if he can't physically see them working"

Fully remote is the way of the future, in tech anyway. Use the money you saved on not renting office space to fly teams to the same area for a week or so a few times a year, there's definite value in meeting, working together in person and going out for a beer afterwards. For short stints.

Otherwise, the lack of commute and the ability to focus uninterrupted for longer periods is massive advantage for remote work