It doesn't depend only on your family situation. I am a PhD student working for the last 6 weeks from home without kids. And and also without a good income. I never expected my makeshift desk with the cheapest IKEA chair to become my work environment for 8+ hours per day, and I seriously worry about long-term injury resulting from this.
This isn't meant to diminish the difficulties of people who need to look after their children. But I work in a laboratory where the senior people blithely complain about how hard it is to manage shared child-raring duties in a well-equipped home office, while junior employees are more or less expected to magically have a productive home office in a shared flats, often in less-than-ideal environment (e.g. with noisy room-mates or building sites next door), with RSI staring us down.
This isn't meant to diminish the difficulties of people who need to look after their children. But I work in a laboratory where the senior people blithely complain about how hard it is to manage shared child-raring duties in a well-equipped home office, while junior employees are more or less expected to magically have a productive home office in a shared flats, often in less-than-ideal environment (e.g. with noisy room-mates or building sites next door), with RSI staring us down.