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 have this experience related to crypto. My father has asked me, can I really make money from crypto? At that time, I can not earn much money from crypto. But I believe someday, I can earn a lot of money and I can live from crypto. Time goes by, and I can now earn money from crypto, although I am still trying to earn a lot of money. I just believe it and keep trying and never give up. That is the key.