Would you give up Greek life to graduate early or 'on time'

[Roselove]

I heard that most people graduate from university at 20. To do this that means that means one would have to graduate in 3 years at most. (excluding those that started early) I don't see how it would be possible to graduate this quickly unless you are strictly and only involved with academics.
If you could do it all over again, would you not get involved with Greek life so you could graduate early or 'on time'. Is it possible to graduate at the norm of 20 while being involved in anything other the school work?

I would not change if I could do it over again. I am proud to be in school, working and involved in Greek life. Still this case even if I don't graduate till I am nearly 23.