Sneha, all of 3 years, found my first camera a few days ago. It is a hotshot camera, which cost about 400 rupees about 10 years ago. I let her play with it, as she was aiming and clicking almost correctly. I added a battery to the camera, so the flash also started working, and she got really serious about it.
She'd now ask people to pose, correct their postures if she found it unsatisfactory, and click away. She even learnt to do the manual winding before each click.
So, I have actually added a roll to the camera. She has taken about 10 pictures so far. Let's see how they come out :-)