The problem here is that cross-stitch is a very eye-catching job, while copper wire painting looks simple, but it is actually very technical. I have consulted the teachers of the Art Department of Baoji University of Arts and Sciences, and they told me that if you are not careful during threading, the whole copper wire will be scrapped, and the rejection rate is quite high. Like all the work of processing materials, the most important thing is that when you hand in the finished product, whether your finished product meets the quality is completely up to others. If you say you don't meet the quality requirements, they can all refuse, but there is nothing you can do!
My friend quit in time after a slight loss, and I have been there myself. After a concrete calculation, I feel that even if I have studied it, the quality is good and people will accept it. However, because of my clumsy appearance, I can only look at my eyes and hurt my health, so I don't participate, but I don't think it is excluded that skilled craftsmen make money.
I hope my answer can help you.