Privacy. You’re putting your personal number out into the ether, on your website or the side of your van or your google my business profile. Ultimately that means anyone could wind up with your number whether you want them to or not.
Silence. Sometimes you just want to turn of work and finish on time for once, that’s OK looking after your mental health is important but using your mobile phone for work as well as pleasure means you won’t be able to switch that off without switching off your family and friends.
Business Expenses. If you’ve made it to the point where your side hustle is now a registered company with its own bank account and what not then there are benefits to putting business expenses through your business and not paying for them directly yourself.