You can do whatever you like of course, but we don't want to have posts here spreading information to end-users which promotes bad practice.
You don't need to get defensive though, we're simply trying to educate you on the security of your system. You're still young, but even if you wheren't - there's nothing wrong with not knowing something. I learn new stuff each day.
If you want to work in the field you will have to learn to use root properly, because colleagues / employers will not take kindly to someone using root everywhere.
None of this is to say your post is not appreciated of course, it very much is. We're simply trying to help you improve a detail.