does this sound like an ignition switch problem?

What is your question?

as i was at school today i went to my car and as i opened my door suddenly the radio as well as the lights on the dash light up so i thought i had left it on (in my car its possible to remove the keys while the cars still on), so i put my key in the ignition and there was no tension as i turned the key it felt really loose super easy to turn. it doesn't make a sound so i know its not the starter. the battery stays on no matter if i turn the car off so i disconnected the battery so that it doesn't die. am i going in the right direction as to if this is an ignition switch problem and if so then around how much will it cost to fix. thank you for your time