Why is the salary of plastic mold design so low? Is there a future? Ask for guidance

Hello, landlord. Mold design is a major that is urgently needed in today's society, and many industries are more or less involved in molds. Plastic mold design is widely used, so the salary of plastic mold designer is not low. Maybe you have only been designing plastic molds for a long time, or you have just started as an apprentice, or this company doesn't value you, so your salary will be low. But don't lose heart, as long as you work hard, master the plastic mold design in place and meet the requirements of the company, you will be very popular wherever you go. The low salary now is to get higher salary in the future. It doesn't matter if the salary is low, as long as one day you feel that your ability is already very strong, then you will jump ship to a company with high salary. Landlord, come on.