My grandmother married at age 16, she had 6 children, and remained happily married almost 50 years when my grandfather passed away. My mother was married at age 18 to my father who was 19. Their marriage lasted 63 years, till my father passed away.
My husband and I married in our mid twenties, still going strong after 33 years. Our kids are just starting to settle down in their 30's. I think it takes longer to mature in this day and age.
Despite all the successful, long marriages in my family, I think it is never right to marry for lust. Simply because lust fades, and if you do not have a loving relationship, you have fallen into an even bigger pit, and that is the possibility of divorcing someone who changes radically as they grown up.
Bulgaria might be different, but in Western culture, waiting till you find God's best choice for a partner for you should be the way to go!