> simplified characters used because that easier for me as non Chinese person to write

Really? What makes one style or the other easier for you to write?

Note that you didn't actually succeed at using simplified characters; 风 is simplified, but 龍 isn't.

> And Japan still uses trad Chinese characters as one of its writing systems.

No, that's just false. They use their own system, which involves some characters that match traditional Chinese, some characters that match simplified Chinese, and some characters that are specific to Japanese.