How to write Japanese names

In Japanese characters, the surname comes first, and the name comes last

But in Roman Pinyin, the name comes first, and the surname comes last

However, in pronunciation, the surname comes first, and the name comes last

It's very convenient to use katakana, and nowadays Japanese young people have a hard time with Japanese characters, so many people will replace

with katakana, which can be said to be a kind of popularity ~