You could therefore buy a prepaid credit card from a site such as
https://www.coinsbee.com/, and then use that prepaid card to purchase your course.
I think he needs to ask the support team about that. Quote the following part:
You can't use a pre-paid card to pay for a Coursera subscription.
So I don't think these cards will work because the name and address will most likely be verified.
Contact the support team before purchasing these cards.
[1] learner.coursera.help/hc/en-us/articles/209819003-Accepted-payment-methods
Everything is so bureaucratic. Even in a platform such as coursera which is teaching about the latest new technologies they are stuck in old payment methods...
Thanks for pointing it out.
I will probably just pay about 6-10% in fees and use a credit card...

Currency conversion is very expensive here.
It's difficult for any business, even if it's selling courses to be payed via cryptocurrencies. There is still a lack of trust and also lack of knowledge of from where the money is coming from!
I can say that you can try and ask for financial aid on courses at coursera, and normally you can get that aid! You can check in youtube for some help on this matter!