Whenever we are using any application we often need to click on home to return to some other app while leaving the current app open.
Now with the repetitive frequent usage of a physical home button we often damage the button and as a result, we have to pay a high service fee to get just that little button work again.
And if you have a modern mobile with inbuilt battery and all the expense is even higher.

So why not save some money and use a virtual home button instead that always stays on the top of your screen.