The pros of having someone pick my career are maybe that someone will pick a career would be something that I like. Another pro of having someone choosing your career is that you can see and or explore a new career. Another pro is that you can also get new friends.
The cons of someone picking my career are that they may pick a career that I hate or don't like. Another con of someone selecting my career is that if someone may choose for me to go to the army. I may not want to go. Then you'll get mad at that person who chose your career. Another con is that some people may be angry and hate each other which would cause chaos.