Who is the most reliable person to collaborate with? Someone who has been doing the same business for a long time. They must be trustworthy. The saying goes, "One year to enter the industry, three years to understand it, ten years to become a master." If they are a scammer, they would have run away long ago. If they are unprofessional, they would have starved to death long ago. Anyone who has been in a business for decades, rest assured, they definitely won't cheat you, and they are definitely trustworthy.