Median salary: $22,820
Job growth expected through 2020*: 20 percent
"With taxi drivers, the most stressful part is it continues to be one of the most dangerous jobs—they're the No. 1 target for crime. You never know who you're going to pick up," Lee said.
Plus, the hours are long and the pay is low.
That being said, the outlook is good, thanks to the economy.
"If the economy is improving ... you need more taxi drivers," Lee said.
* According to the Bureau of Labor Statistics