According to my own experience, I am more like your brother because I graduated from junior high school and worked as a general worker until I was 20 years old. I trained outside for three months. First of all, the mold design major does not require high academic qualifications, and there is no profound theory. Most people can learn it, but learning it does not mean success. The design post pays more attention to the later experience accumulation. I feel very studious.

According to your brother's situation, if you study full-time (full-time at school), you can start looking for a job in 3-4 months. If it is part-time study (online study), it usually takes 4-6 months, because there is less practice time every day. So it depends on your brother's own choice, whether to hurry or keep an income.