Do my cats think I'm their Mamma? I love them, take care of them, pet them, spoil them, and I've had them

since before they were 6 weeks old. They are such a joy! They let me know if they want something, they sleep on the bed with me, blah, blah blah. Is it possible that they think I'm their Mamma? They come up to me like a little kid would do, except they're pretty old now.