Do reflect a little if your knowledge and experiences in your field, especially in the China market (or in any other market), could be useful for others.
For example, if you are familiar with certain business terms or certain business procedures in China, you could sideline by offering this knowledge to parallel industries that might need it, or might need a point of reference?
I'm suggesting a transfer of knowledge and expertise where you create this parallel value for other industries. This way, your knowledge becomes your economic asset and a sideline could become a lifeline.
Youth and beauty may be useful, but under certain conditions, speaking from experience with a thinning hairline, or some graying hair, has respectability and credibility that is unbeatable.