Re: This is unnecessary
Who do you think insures you when you work from home in the UK or the US?
I can't speak for the US, but in the UK (and France) you're covered by the government schemes when you're officially at work, wherever that may be.
For example, injure yourself in a fall at work, it's a workplace accident & treated as such, you'll get compensation, paid time off, etc. If it happens when you're not officially at work, for example when you're working illegally, your health expenses will probably be covered but you won't be entitled to other benefits that would be paid to an injured employee, for example unemployment and housing benefits. In France it's a particular problem in the construction industry, which employs many people illegally and where accidents can be serious.