Who gets to consider what is essential and nonessential?

I'm just pondering what would be considered essential, most things I buy, if I consider them to be essential like a haircut I go and get it. I weigh the risks, the pros, and cons, my bank account, and In the end I go when it's essential.
via YouTube
https://www.youtube.com/watch?v=fhwccHjDqiI