Many doors don't use keys anymore... 
Terraria Community Forums
The True Destroyer
Buffling
Seems like both would probably only be handy if you’re a criminal lol
Golden Heretic Snakeboat
Key. Then No One Can Lock Me Out Of The House I 
ing Live In.
ing Live In.
The Storm
A key, then I could just use it to get out of jail anyway.
DinoZers
A key that opens every door imagine entering a milf house and she's hot XD
Vitrolic Medicine
A key - no more inconveniences.
Mushy Chlorophyte
The key that opens every door.
I'll at least be able to get to the much cleaner staff toilet at school.
I'll at least be able to get to the much cleaner staff toilet at school.
appleNsauce
Key. The jail card is specific. The key can be used for many different things.
The Owler
Depends if the key can open the jail door.
appleNsauce
Well even if it could, you’d still be a wanted criminal