why is a apple the right size for a human hand?

I noticed all over the internet that it seems that i am the only one noticing that trees have adapted to different creatures of this planet.
And pays the creatures in offerings designed for them only.

Like berries that are toxic to us! are nutritional and tasty to some bird!
As the fruit trees have some how worked out how to protect the seeds until the bird later releases the seeds in his/her droppings.

Apples are the perfect size to fit the Human hand and offer us no trouble in access to its wonderful selection. Perfect for us to eat around the core and dispose of on the grass or even on the pavement in a town becomes a great snack for a city birds helping spread the seeds further a field.

All cherry tree's offer their fruits as a gift to people by feeding us they are helping us help them by spitting the hard seed away assisting the tree in its attempt to spread its seeds.
Bananas have their own packaging and so do Oranges both designed for our hands to peel and eat.
It is so strange that this planet has grown around us too perfect to not question it.
Am i the only one asking these questions nobody asks?
everything on the planet is creatively designed perfect.
And how can something so complex be so perfectly made.

Example: imagine a simple sunflower seed can grow up to make 300 seeds approx.
But before this became a beautiful big warm yellow and brown flower with bright strong petals!
But also sunflower seeds have become a modern day hi valued rich food source.
Maybe that rich source is the force that would have given the sunflower its important energy needed to aid its growth.

I just think we should question this because this world is too perfect and beautiful to be random.