Electrosafe - Market?

So I thought of an idea that needs some heavy criticism...

The idea is meant for people that like to have a stash of cash at home for emergencies or personal use, but don't have a secure place to put it that is easy to access when you want it. Basically, I want to make an electronic safe that allows you to deposit money without opening it and allows you to take out certain amounts of money without opening it as well. For example, you press the "5 dollar button" and you get 5 dollars out.

Is there a market for something like this. I'm only 15 y/o so I'm just curious as to if I should research into this.

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