So… get married because the government has made it inconvenient not to? Aside from the fact that this is factually wrong (see other replies to your comment) this is also an awful reason to marry someone.
How do you get that conclusion from my comment? Lol. If anything, my comment suggested that don't even live together with someone, let alone get married. Because living together is legally the same as getting married in many jurisdictions. I might have been mistaken about the amount of places with such laws, but it's always a good idea to check your local legislation or talk to a family lawyer.