Which of the following is a major theme of the poem ?

Read the following poem and choose the correct answer to the question from the options given below. Behind them at intervals, Stand husbands in skilled trades, An estateful of washing, And the albums,  Lettered our wedding. Lying near the television:  Before them, the wind  Is ruining their courting-places  That are still courting-places (But lovers are all in school),  And their children, so intent on finding more unripe acorns, Expect to be taken home, Their beauty has thickened.  Something is pushing them To the side of their own lives.