Yes you can put maple syrup on anything you would like the maple syrup on.
However maple syrup may not taste very good on everything such as a hamburger, hot dog etc.
But maple syrup goes good on Waffles, Toast, Bread etc.
If you like the maple syrup on the food then there's nothing wrong with putting the maple syrup on the food you like it on.
I like maple syrup myself but would not put it on everything although you could if you wanted too.