Exactly what experiment actually shows gravity is pulling on these objects? I've not seen an experiment showing this. But what we can test easily and see for ourselves is that an object will rise or fall depending on its surroundings, change the surroundings an object will behave differently. Apple falls through air but change the surroundings to water it now rises this tells me its the medium which determines rising and falling.Everyone can agree that thing fall down.
Gravity is a theory that tries to explain this.
But there has never been an experiment that actually proves this is the correct explanation.
It is the same with a lot of this stuff. There are deep mysteries on earth, and the science priests pretend they have the answers.