I think this forum is a great place to start with. You can always find numerous articles about different topics but you will the concise facts here. I first heard of crypto from a friend but this forum is what keeps me going.

Bitcoin is banned in Bangladesh as i recall so any kind of transaction is illegal. And Payoneer is legal which follows the regulations of Bangladesh so your account might get ban and can face serious punishment if you convert. So it is suggested to remain discreet if you do convert.

Bitcoin can work as a medium of exchange. So it does act as an economic function. The feature of investment also help in this matter.