PS - I don't have a coding background.
Just show them how worth what you are doing.
sometimes it is the actual situation that will answer the problem than just a word of explanation
like what they say, To see is to believe.
i remember when i was young when i plan to work in a fast food chain and my parents denied me from doing .
but instead of following them ? i secretly start the work and then when my parents starts to find out ? they see that my grades did not change so they let me do my things and since then trusted me in every decision i made.
Yes, there's no need to convince them when there's fruit of your work already. If you are earning in crypto even without coding background, they won't say a thing anymore. You can explore other opportunities like trading but if you are seriously going in depth in crypto, you need to at least learn some basics in coding. Because if you go into mining, you need to program your equipment, and it needs understanding of coding. But there are other ways how to earn in crypto, you just need to know your strengths and see for yourself where you can you utilize it. Sometimes parents are against because they thought you can't get anything out of it, but if they see that you are earning, I believe they won't contradict you anymore.