Board Thread:Questions and Answers/@comment-99.246.108.110-20141027232834/@comment-3250527-20141028001840

Who says people can't marry others because of age? In the Renaissance times, Picasso married a 16-year old girl, when he was 60. This is an example of an extreme of the marriage age-difference spectrum (on-the-fly arbitrary coinage for the sake of this discussion). There is no law or regulation (as I know of) that restricts prospective spouses of marrying because of an age gap.

In the case of Sugou/Asuna, it was an arranged marriage. I bet when Sugou mentioned "having [Asuna] wear the dress now" rather than a certain "later" was because of a Japanese sanction that spouses must be at least 18 years of age to marry. Never mind, the legal age for females to marry is 16.

Disclaimer: I do not support Sugou/Asuna. Because Sugou (insert inappropriate slur here).