iPhone 11’s POLICY about not including power adapter with iPhone 11

When the iPhone 12 was released, Apple discontinued including power adapters in all phones including the iPhone 11.

See the following from Buy iPhone 11 - Apple

As part of our efforts to reach our environmental goals, iPhone 11 does not include a power adapter or EarPods. Included in the box is a USB‑C to Lightning cable that supports fast charging and is compatible with USB‑C power adapters and computer ports.

We encourage you to re‑use your current USB‑A to Lightning cables, power adapters, and headphones which are compatible with this iPhone. But if you need any new Apple power adapters or headphones, they are available for purchase.

You don't need to order it from Apple; you can use 3rd party adapter as described below from Fast charge your iPhone - Apple Support

You can fast charge your iPhone 8 and later up to 50 percent battery in around 30 minutes.1

Fast charging works when you use an Apple USB-C to Lightning cable and one of these adapters:

• • Apple 18W, 20W,2 29W, 30W, 61W, 87W, or 96W USB-C Power Adapter
  • A comparable third-party USB-C power adapter that supports USB Power Delivery (USB-PD)

You can return the phone if you purchased directly from Apple and are within the return policy: https://www.apple.com/us-hed/shop/help/returns_refund or if you purchased from an Apple Authorized Reseller, check with them for their return policy.

Also note the following: https://www.samsung.com/uk/support/mobile-devices/why-does-samsung-not-include-a-charger-in-the-box/

And be aware that this is primarily a user-to-user support forum; other Apple users like you. You can use the following to give feedback to Apple: https://www.apple.com/feedback/iphone/

The Lightning connector on the iPhone is identical to the one introduced on the iPhone 5 in 2012. Any existing Lightning to USB-A cable will charge any of the newer devices.