Your parents aren't the enemy — they're scared. Here's a calm script for the conversation, and what to bring to the table to be taken seriously.
When parents resist a non-traditional career, they're rarely arguing against the field itself. They're arguing against uncertainty. The fix is to remove the uncertainty, not to argue louder.
Bring three things to the conversation: a realistic salary range with sources, a specific 5-year roadmap (which course, which internships, which companies hire for it), and at least two real people in that career you can point to.
Avoid the words 'passion' and 'dream'. Use the words 'plan', 'salary', 'demand', 'next step'. You aren't selling a feeling — you're presenting a thoughtful business case for your own life.
And most importantly: acknowledge their fear out loud. 'I know this is scary because no one in our family has done it' goes further than any argument.