I think a better approach is to challenge the claim of just because it is old it must be unreliable. So, why should we believe some ancient writing from Galileo that we live in a heliocentric system since the writing is so ancient? The problem with such arguments is that it tends to claim too much.
Agree. However, I feel that argument is made by those who are not yet mature or people who have way too litle IQ and too much confidence in themselves to know they may be wrong.