Cesar R. Having someone pick a job for you might be a good thing. It can be hard to find a job that suits you and the people in the book might see what they think is good for you. This means you don't have to worry about anything. It's also hard to pick a job when your only twelve years old. Them picking a job for you will also result in less consequences because of the job problems you get when picking your own job.
There is also problems with someone picking your job. One problem is that you may not like the job that is picked. You don't think it's what you want at all. Another thing is that you may like it, but you change your mind. You found out you weren't good at it or didn't like it.