Feras Alhlou argues that side hustles split your focus and prevent you from excelling at either your day job or the side business. Taking on accounting work for family or friends while working at a mid-sized company leaves you doing both things halfway.
If your day job is accounting for a mid-sized company, is it okay to do accounting for family, friends, and small local businesses on the side? Even though this sounds tempting and harmless on the surface, I'm not a fan of it in the long term. Splitting your focus between your day job and your own business prevents you from really excelling at either.
