Yes, you can start an iPhone without an Apple ID. When you first set up the device, you’re given the option to skip the Apple ID setup process. However, keep in mind that some features of the iPhone, such as downloading apps from the App Store, using iCloud, and syncing data across devices, will require an Apple ID.
If you choose to skip signing in with an Apple ID during setup, you can still use the device for basic functions like making calls, sending texts, and using the internet. Later, you can create an Apple ID or sign in with an existing one if you decide to use additional features.