The mandatory retirement age for hookers in Taiwan is 55, so it's been 7 years now.
Yeah, she knows she's in a little trouble with the Taiwanese social security people, but she was doing a favor for a friend -- that kinda thing. 
This is down right discrimination of woman world wide, talk about government control. Mandatory retirement for some one in any kind of legal work because of sex and age is OUTRAGIOUS.
Like any other kind of business, the working girls become better each year at their profession. Any kind of service one pays hard earned money for one expects the best, most experienced and that comes with years of experience.
We all know we get what we pay for in life or sue. These over 55 year old woman need a strong Union, a good advertising campain and high wages due to their experience in a dangerous profession.
Retirement of the best of the best at 55 is to flood the comunity with the inexperienced young woman that have little pride in their "work ". Sex is a craft, a calling, sort of like spending $80.00 for a hair cut from a young beginner where for $20.00 more one can go a long time professional and get just what one wants. Repeat follow up and word of mouth spreads.
For those unfamiliar with the Asian race, it never ceases to surprise me when meeting or working with some Asian woman that they look 30 years younger then they are if they fuss about keeping their body's in trim condition.
Age and sex is not a thing just for youth, the more one practices the better they become. SHAME on TAIWAN for squandering a natural resource.
----Heck look at Camellia Parker Bowls, she snatched up the future King of England from his very young beautiful and admired wife.