I think it might come down to how much people like being paid. It isn't reasonable to expect an employer to pay people indefinitely just because they don't want to come into work for whatever reason (no matter how reasonable you think that reason is!) - same as employers are not obliged to retain people who are absent for long periods of time through sickness.
It will be fine for those of us who can wfh - my employer isn't going to force anyone back into the office ever I shouldn't think - but for people who can't but are currently getting a lot of leeway because it's all new and we're in crisis mode (eg factory workers, shop workers) will have to make a choice themselves in the not too distant future as to whether they go back to work at all.
There will soon be a lot of posts from people who are up in arms about the fact that their employer won't let them remain on the payroll forever and not go to work/won't furlough them indefinitely/etc.
Kids being off school will complicate things even more. Even when schools go back - I've lost my grandparent childcare for the foreseeable, it was only one afternoon a week but it made my schedule work and I won't be able to replace it. I'm sure there are many people in the same situation. Again, I can wfh but if I worked in a shop I'd be screwed.
Also those who are shielding - employer isn't obliged to pay them and many of them will lose their jobs as a result.
Long a short if it - I don't think there are many people who long term want to be off work just for the sake of not having to work, but there are a lot of people for whom the decision is not that simple.