If you get a good skill, you can thrive real well even though you are an introverted person. it can only get worse if you are claiming that you are an introvert and at the same time you lack the necessary skill.
Even with a good skill an introvert still needs to have a good marketing strategy and communication skill to thrive. Been introverted most times can deprive a fellow from opportunities simply because they don't network and their cycle is just limited to a few persons who might not have the time to help widen their network. In our modern world been introverted can cost anyone so much that they just sit and regret their choice of lifestyle. As for introverts who lack skills those ones are simply saying no to their existence because I wonder how they will survive with all the inflation hitting hard on our economy.