I love it compared to normal school. No uniform/co-curriculum, plus you study what you wan't.
You have to be disciplined though, because teachers aren't as tight and won't annoy you to do work. It's entirely up to you.
Also you got to be careful not to mix with the wrong people, which is the main reason why I moved from RMIT to CAE.
Timetable is looking awesome for next year. I get every Wednesday and Friday off. Loads of time to study.

It's not for everyone though...
And as for age demographic, most people at RMIT this year were students who were repeating year 11, so you can wonder what type of people who attend TAFE are like LOL. I use the term "students" and "attend" very lightly haha.
Majority are under 25 years old. I'd say less than 10% above 25 years.