I think it's a stretch of the imagination to say that this scripture is saying people should remain single.
This is all IMO:
One of the reasons we're here on the earth is to have joy and happiness, and one of the best sources of that joy is love. Love leads to families which is also a major source of happiness. What bigger responsibility is there than teaching a child to follow Christ? My opinion of the scripture is that it says it's good to be married, but if you're not married then that's ok too. There are ways that you can use the gifts God gave you if marriage doesn't come knocking on your door. Nowhere do I see it saying to avoid marriage. To each their own, but I have always had a really hard time understanding how people justify a life of celibacy as a way of following God... Since the time of Adam and Eve, we were made to be together.