People in Hong Kong and Taiwan use Traditional Chinese officially, both in Handwriting and Documents, not just because it's aesthetically more beautiful, but also because Traditional Chinese retains the personality and original shape of words compared to the simplified version. Taiwan especially uses Traditional Chinese as an opposition to Mainland China's usage of Simplified Chinese.
Personally, having gone through grade school with Simplified Chinese makes you appreciate Traditional Chinese because the simplification of words sometimes makes no sense until you see the original Traditional writings. Eg. 愛 (Traditional) has the word 心 (Heart) in it versus 爱 (Simplified) which removes the heart.
The older generation would be better with Traditional because that's what they learned growing up. The younger generation probably love simpler things so Simplified would be the way to go.
If you are interested in the debate between both : https://en.wikipedia.org/wiki/Debate_on_traditional_and_simplified_Chinese_characters
But to answer your question, yes, Hong Kong, Macau and Taiwan officially uses Traditional Chinese.