What happens if someone does not turn airplane mode on a flight

Can You Use Your Phone on a Plane? Furthermore, Should You

The real reason you can't use your phone on a plane

How does the flight crew know if your phone is in airplane mode? - Quora

What happens if one or no passenger comes to fly on the plane? Does the plane still fly? - Quora

What Is Airplane Mode? How Does Airplane Mode Work?

Is it okay to play ad-supported games with airplane mode activated? - Quora

Why do iPhones sometimes have better signal after turning airplane mode on and off? - Quora

What Happens When You Don't Turn on Airplane Mode on a Plane

Why are phones switched off during a flight? What happens if you turn on your phone in an airplane? - Quora

If I set my phone to airplane mode and try to call someone, will he get a notification for a missed call from me when I turn off airplane mode? - Quora

Does Airplane Mode Turn Off Your Phone's Location? Here's What to Know

Is Airplane Mode Safe?