Probably try to find someone to do it for me. This sort of thing is massively complex due to international law and tax differences. You can maybe abstract the issue a bit by using tokens like bits then paying out, rather than using currency directly. But in the end you still need to pay out and still need to conform to law in whatever country you pay to or do business in.
I would probably avoid doing this at all costs unless it was perceivable that it would result in significant return, significant enough to justify the initial pain and ongoing costs.
Someone else mentioned KYC, which is also very important here to avoid fraud and potential legal issues. KYC is not easy to get working because bad actors will always find a way to break it. It is also not cheap and is very heavy with overhead.
Be aware that engaging in these things may also put you in the hook for complying with laws like GDPR or equivalent, depending on the data you store and how, which can add to things.
