Oh no ! I would hate to have to go back in any amount of days, not even one a month.
For us though, we are working through the company programs and we make transactions, so they can not only tell when we are inactive, but they can also tell how many transactions and when. This wasn't new to working at home though, it was already like that when we went into the office too. When the company gets too large for them to keep up with the massive amount of workers, they have to have the system do it so all they have to do is read a report of maybe not even that, just get an alert when some worker isn't complying with the requirements.
Our company would have to go to a little more trouble now to bring us back in though as they no longer have the huge building we were working in. A few they can have come back in other places if need be, but it would be major to decide to bring us all back. I'm not going back. I believe I would quit first. That is easy to say though, since I don't think there is any chance of it. LOL
I had already thought about teaching someone else my job and paying for them to sit in once in a while.
For a while I was doing one a fortnight. Heck, even though I am meant to be doing one a week I am still doing about one a month. I always seem to find an excuse to get out of it.
Thats the same with ours. They might harbour all these fancy notions of getting us in more but they got rid of one of the offices and I genuinely think they can only support half the workforce in at a time maximum! Which suits me just fine!