No. Not at all. Personally, I do not advocate the idea of living together before marriage. Why? There are lots and lots of reasons to it. In fact, I can write an article on that. But since this website is not an article writing site, I restrict myself to the bare minimum necessity, that is 120 words to reply your question.
In a world, where 'marriage' is not at all respected and all moral principles that constitute a person's behavior are thrown to winds and divorce becoming rampant, do you thing living together will actually help? What if if the guy, after living together for a few years, gave a child also to that poor girl and then breaks away?