how old will/were you marry?or not?

China
March 25, 2007 8:51am CST
my sister and her boyfriend coherent about 3years.now she is 24 old.when i asked her "when will you marry?" she answered me in no hesitantion"i don't think about it,maybe 10years later." in the past this situation can't be imagined,but now it's common.how do you think about it?what caused it? how old you want to marry?if she/he is you,what will you do?
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