Applying for the wrong card
Why it happens
Premium cards (Sapphire Reserve, Amex Gold, Venture X) advertise heavily and look attractive. Their underwriting requires established credit, so a no-history beginner is auto-declined.
What it actually costs
Hard inquiry on your file with no card to show for it. The inquiry stays for two years and the rejection consumes your “free” first application slot for that issuer.
What to do instead
Match the application to your credit profile. Beginners apply for beginner cards, secured, student, or starter. Pre-qualify first when the issuer offers it.