[Answer]: Hong Kong's outdoor advertising is very famous. It is the most important auxiliary media after the four major advertising media. It can be called the "ocean of advertising" and has developed to the point where it is overwhelming and every opportunity is exploited. the point. Neon signs in Hong Kong have been highly modernized. At night, the brightly colored neon signs are dazzling and colorful. Although Hong Kong's outdoor advertising is dazzling and unconventional, it is safe and orderly. Setting up billboards or adding advertising projects to buildings must be approved by multiple government departments. Only outdoor advertising that fully meets safety and city appearance requirements is allowed to be built.

I think it is more difficult for Taiwanese.
Reason: 1. There are many billboards with traditional Chinese characters on the streets in mainland China; 2. Many products imported from Taiwan and Hong Kong are in traditional Chinese characters; 3. There will be corresponding traditional Chinese characters for simplified characters in the dictionary (Taiwan (Except for old characters and variant characters that are still in use); 4. There are also many people in mainland China who watch programs from both sides of the Taiwan Strait and the three places on the Internet and TV; 5. The literate older generation can basically write and understand traditional Chinese characters.
ps: Especially during the martial law period, it was illegal for Taiwanese to write simplified Chinese characters