Nowadays, makes no sense that this is not widespread. I find myself having trouble findingi charging zones for my phone, then realising there's a small one, serving thousands of people.
They can put charging ports in the chairs (some have it, super handy). They can create more charging zones. Some major airports still lack these, and let's be honest I will waste my battery while waiting for my flight (and I need the phone for everything). Would it be that costly to update the airports in this regard?