Technical writing is a great field. Lots of flexibility. Technical writers can get jobs almost anywhere,and many work as independent contractors - setting their own hours and running their own lives.
Salaries start in the twenties and thirties but average in the mid-forties.
With experience, technical writers can command even higher pay. Technical writers get to talk to people all of the time - they don't just sit in a cubicle all day. They often serve as interpreters between engineers and users, so have to communicate with both groups. Because technical writers can apply their skills to many different industries, they encounter new things almost every day. Technical writers learn to write clearly and gracefully, regardless of the complexity of the subject matter.