You can’t delete the Phone or Messages app. They’re like the building code of your iPhone 7. But many others—like Stocks, Tips, or Compass—you can erase.
Yes, even the Compass app. Unless you’re a Viking exploring the Mediterranean, you don’t need it. Seriously, when’s the last time you used it to find North?
If you change your mind, just go to the App Store and re-download those Apple-made apps for free. No shame in that game.