Radiometric dating isn't something man has dreamed up. It's an irrevocable feature of nature that we can observe and use. Just like the sun coming up, or electromagnetic theory.
Radioactive decay has been going on since the origin of the universe, other wise things just wouldn't work. To suggest it's just arrived on the scence or is some "trick" or misconception doesn't wash. With me anyway.
I think all here will agree dinosaurs were here before man. The bible says so, and gives no exact time span between creation of dinosaurs, and creation of man.
Dinosaurs skeletons have been found with meat eating features. So either animals ate meat before the fall or dinosaurs were running around the garden of Eden with Adam and Eve, eating quorn burgers.
Beads, are you gonna stick your hand up and post the following statement:
"Dinosaurs were living under 10 thousand years ago."
And you might as well add:
"Noah took dinosaurs on his ark". while you're at it.