I do believe that Romeo and Juliet were capable of a mature love. Certainly there is that potential for most people, even though these two lovers were very young. In truth, at that time, it was not unusual for young people their age to marry and start a family; people then often only lived till they were forty or fifty. With this brief live expectancy, a man and woman would marry and have children early on. And many times they would have many children, as the infant mortality rate was about one in four. Even having a baby could be a death sentence for the mother if complications arose. These things would have had a way of forcing the two to quickly grow up. For argument's sake, this is what every married couple probably goes through: either finding success or failure—but the facing of the need to grow up in the face of reality, when romance subsides and the real world steps in. Romeo is hot-headed in killing Tybalt, but they lived in dangerous times. The feud between the families had been going on for a very long time. Even Juliet is able to overcome her anger with Romeo in a mature manner when he kills her cousin (even though it seems warranted). Juliet knows she must turn her back on her family and "cleave" to her husband, as the Bible notes. This shows her ability to handle heartbreak in light of her devotion to her husband; it also demonstrates her propensity toward maturity already.
As litteacher8 states, it is logical that their relationship would have changed over time and I would add that it is reasonable that they would have matured into a more substantial kind of love, but what makes the story great is that we never know. Their youthful foolishness and young love, along with the impetuousness of youth, leads to their demise. The audience is left to wonder what "might have been," and is sad because we will never know.
This is an interesting question. I do think that Romeo and Juliet's relationship might have changed if they had lived to be older. All relationships change with time, and they would have likely had children. The relationship of their youth was based on passion, and love at first sight. There was really no substance there. They talked in pretty words, but never really said anything to each other. I think they might have grown more in love if they had a chance to get to know one another, or they might have frustrate one another. I can’t imagine Romeo having to hold down a job or Juliet running a household.
This is an interesting question.
Romeo and Juliet is a tragedy written early in the career of William Shakespeare about two young star-crossed lovers whose deaths ultimately unite their feuding families. It was among Shakespeare's most popular plays during his lifetime and, along with Hamlet, is one of his most frequently performed plays. Today, the title characters are regarded as archetypal young lovers.
Romeo and Juliet belongs to a tradition of tragic romances stretching back to antiquity. Its plot is based on an Italian tale, translated into verse as The Tragical History of Romeus and Juliet by Arthur Brooke in 1562 and retold in prose in Palace of Pleasure by William Painter in 1582. Shakespeare borrowed heavily from both but, to expand the plot, developed supporting characters, particularly Mercutio and Paris. Believed to have been written between 1591 and 1595, the play was first published in a quarto version in 1597.