If someone from an isolated, technologically undeveloped culture sees an electronic gadget, they may think this took a long time to make. Does the gadget have apparent age? No, someone is merely ignorant of how it was made.
Similarly, Adam and the original creation did not have apparent age. Some people may be ignorant of how Adam was created but that does not make him older than he is. It is a question of knowledge vs. ignorance, not actual vs. apparent age.