Realistically speaking, marriage has changed greatly throughout its long existence. Nevertheless, the most important bond of a married couple is love. Besides love, the commitment and desire to spend time and share experiences is the basis of a real marriage. However, nowadays it seems there are other aspects involved in the marriage institution.
According to recent statistics in Spain, people prefer to get married than to stay single. Perhaps, during these harsh economic times, it is easier to cope as a team than trying to face them alone. A part of this is the fact that in our current times, married couples have more advantages than those who are not married. Furthermore, the development of marriage and society have improved the balance between men and women.
Clearly the biggest change to former times is that people of the same sex have the possibility to marry. Spain is one of the few countries that allows this. Previously, the homosexual community could not publicly show affection to each other. Nowadays, they have the same rights as heterosexual couples. They can live their lives as they please.
To sum up, many things have changed and developed but the most important things is the fact that a marriage must have love, commitment, intimacy and passion to survive. This has not altered in the last 30 years and will never change.