Saying this after many, many years of remote working, where the boundaries between work and personal life blurred so far they became practically indistinguishable. (yay 24/7 "DevOps" culture :/)
I find the same kind of creep can happen at the office, too. Many colleagues end up leaving at 8 PM or later [0] because they have to do this one more thing or someone shows up with just a quick question to ask.
However, I realize that for some people, who have a harder time saying no for whatever reason, it's easier to have a hard, external excuse. "Sorry, I need to catch my train, so I don't have to sleep here" works less well when you're already home. But I think that in both cases it's very important to set boundaries and stick to them.
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[0] Our workdays are normally 9 AM to 6 PM.
That's still an office paid by your company, with all the benefits that go to the company.
The company I work for before opening a new office for their employer has to provide:
- security
- daily cleanings
- insurances for all the people working there
- reception
- authentication and authorization (badge readers etc.)
- secure connectivity and storage
- water, beverages, sometimes a cantine if the office is big enough.
That's by contract (at least my contract).
If they are really going through the route of paying for your coworking they should sign a contract, which means a lot of bureaucracy and most of all it would force the employer to always use the same space for at least a few years.
So the better way is to ask for a pay rise to pay it by yourself.
If you can pull it out.