i think the whole "act your age" thing is coming from people who in their countries, people are supposed to "act their age"--but people in Japan dress young. Men and women wear trendy things that 20-somethings would be wearing too. I mean do you want ayu to start appearing on age appropriate magazines, such as ones for housewives and homemakers or something? People reading ViVi aren't reading it for wearing things for older audiences. Plus, other "older" female celebrities such as namie amuro would have to too start changing how they look too. Mini skirts at 31 would be considered a "no no" in, say, the USA or something, especially as a mother.
Even Matsuda Seiko wears clothing that young people would wear:
So yeah...
__________________
"Remember, don't let others dictate your music taste. If you like whatever you're listening to, keep listening to it."