not necessarily. As long as you don't use someone else's brand, you can customize it by giving a name or joining other brands. Any industry does not have to have a trademark to do it. But if you want to be your own independent brand, you should also apply for a trademark slowly. Applying for a trademark is also very simple and fast, and the ordinary trademark is only over 1 yuan. I applied for the trademark of my avatar this year. You can ask me if you don't understand anything. You must know everything and say everything.