I work from home 99% of the time and what you say makes sense for me too. But I think the point DHH is making is more to do with companies requiring you to be i

I work from home 99% of the time and what you say makes sense for me too. But I think the point DHH is making is more to do with companies requiring you to be in the office almost every day when everyone else is there which is completely unnecessary in a lot of cases. You enjoy the office, your coworker may not. There are tools now that help both of you be happy doing the same job together.