Why is international trade more difficult than domestic trade?

International trade is more difficult than domestic trade due to various factors such as differing regulations, customs procedures, and tariffs that can complicate transactions. Additionally, language barriers, cultural differences, and varying economic conditions can create challenges in communication and negotiation. Logistics can also be more complicated, with longer shipping times and the need to navigate International Shipping laws. These complexities require businesses to adapt their strategies and operations for different markets.