Marriage... Is this going to change ?

As we know, for thousands of years, institution of marriage has been held with utmost respect and followed rigorously by human race irrespective of creed, color and location. This system has helped society in multiple ways, including warding off chaos and filling a sense of purpose in life. Encouragement to monogamy and divine status to motherhood, all these have ensured that this institution of marriage does not fall apart. Marriage ensures that planet earth will have enough humans carry on the civilization without much disruption. But today we have more than enough number of men and women to carry on this tradition, without any danger of diminishing numbers in near future. So is it time to loosen this institution for a bit ? If some men or women chose to escape from this responsibility and follow other pursuits in life, should we accept them without much ado ? Does everyone need marriage for self realization. Should our life revolve around marriage all the time ? I think its fine if some people chose the other way and try to be productive to society by doing some thing else. Some times I keep thinking, what should I chose, should I get off the hook of responsibility or take it in a lighter way or jump into the band wagon of marriage with full faith and hope for the eternal bliss :) Is this world going to miss my genes if I chose the other way :P :)