AirDrop icon not showing up on my iPhone 14

Are you not seeing the Airdrop option after tapping the Share button?

This will happen if you have Screen Time turned on and limit the use of Airdrop. Check at Settings > Screen Time > Contents & Privacy Restrictions > Allow Apps > AirDrop. If this switch is off, then turn it on and your problem will be solved. If you are unable to change this setting, then your phone is part of Family Sharing and the Organizer of the plan will have to make the change.

How do I turn off share time bc my airdrop icon has disappeared