Can’t change cellular data options

I found the answer in the Apple toolbox. Some users had this issue after the latest update. Here’s the answer,

How to fix cellular data settings

• Confirm cellular data is enabled by going to Settings > Cellular > Cellular Data
• Try turning Airplane mode on and off again by going to Settings > Airplane Mode
• Go to Settings > General > Screen Time or Restrictions > Cellular Data Use, make sure “Don’t Allow Changes” is toggled off, then tap Settings > Cellular, then turn Cellular Data to OFF, wait a few seconds, then turn Cellular Data back to ON
• Reset Network Settings by going to Settings > General > Reset > Reset Network Settings
• Reboot your device by powering off, waiting a few moments, and powering back on
• Uninstall and install any app that doesn’t update the cellular data settings properly
• Update your iOS device to the latest version of iOS software
• Try to reset all settings via Settings > General > Reset > Reset All Settings