In what context? In the context of staying single? No. In the context of married life? Yes. It would be quite unusual, and if you re-read both the Old Testament and the 1 Corinthians 7 that was earlier quoted it was not something encouraged by either Jews or Christians for married couples.
In any case, the early Christians put high store by virginity.
Mary and Joseph were observant Jews, not Christians. They went to the Temple on the proper occasions and followed Mosaic law.
They did not like modern Americans rank a family life among the single life.
What?
After all, they believed that the Lord was to return soon, so a normal life was not for them. After Paul had a tremendous religious experience, he devoted his whole life to the mission that Christ had given him.
Putting him on the road a lot, off to a lot of meetings, and putting him at risk of his life; which is not conducive to married life. Paul wasn't Joseph, leading a relatively normal life, supporting his family as a craftsman.
But Mary and Joseph had an experience that makes Paul's experience pale by comparison. I do not think it remarkable that that experience would make them forsake a normal life and make them devote themselves entirely to the mission of raising that remarkable child.
But they didn't forsake a normal life. Mary raised her child (or children, depending on how you interpret Scripture) at home. Joseph worked as a carpenter to support his family. How does Joseph and Mary having sexual relations detract from their ability to raise Jesus? If anything, it would help strengthen the bond of love between them and help them support each other in their family life. Isn't that why God created man and woman and the sexual bond within marriage?