It's more like selling an electric kettle without a charger. People are already expecting to pay for water to fill a kettle, just like they pay for electricity to fill the battery.
First time buyers of iPhones aren't unreasonable. Being unreasonable is saying a trillion dollar company is fine to charge more for less.
If you're genuinely a first-time buyer and have no other electronics... then just buy a charger. They cost a few dollars. What's the problem? We need to reduce waste.
It's more like selling a kettle without water. It's expected most reasonable people will have their own water supply.