D.c.'s big decision

Since Washington D.C just legalized gay marriage, does that mean the rest of the nation should as well? Washington is the nation's capital and leads the rest of the country. I think that the decision made by D.C. affects the whole country. Because DC is the headquarters of the nation, what they do, the rest of the nation should also. D.C. probably should have waited a little longer to decide and had the other states follow their choice. I believe gay marriage will be legalized all over the country very soon, it seems like every couple months a new state is legalizing it.