To purchase the mitoshi tokens in the platform one needs to pay with ethereum or bitcoin. This would be convenient to ensure that every body can participate irrespective of the locations or nationnalite
In my opinion, the team could consider adding fiat gateways in the mitoshi app to help those who are not familiar with cryptocurrency have the opportunity to partake in the lottery platform.
I might be wrong, but I believe I read somewhere that payment can be made with fiat as well as cryptocurrency, which like you said is a good idea and is more convenient and presents a better opportunity for participation.
Variable payment method is really good for lottery business most people are still not aware of cryptocurrency so the decision to add fiat is a very good one for business