User blog comment:TyLeefan421/Vocaloid Shipping/@comment-121.54.112.181-20130816162607/@comment-5051846-20140203104338

The age difference has different effects at different ages. For example, when going through puperty, 2 years can make a huge difference. But once an adult, age difference has far less impact. For example, there is no way you average 20 year old would date a 10 year old, there is a massive divide. But a 20 year old dating a 30 year old wouldn't be that huge a difference.