Very few, if any, women ever say they have a work-life balance. Not a good one, anyway.
Balance isn't impossible though. The problem is we haven't understood it well enough to make it work.
Despite the sense of difficulty that surrounds the concept, it is nevertheless something worth pursuing because we cannot live happily or be healthy without some semblance of it.
Balance as a concept is a misunderstood creature and it's the misunderstanding that makes us feel like it's impossible to achieve.