It would be a difficult thing to do because you're going to need someone to be in the other country to sell the bitcoin for you and that takes a lot of trust to do especially most of the people that do this have millions to start their business so it's not a waste of their time. I would say that it's a great avenue to make money but the expenses and the effort that you need to pull this off is going to be difficult and isn't this kind of thing been done before and the people that have done it got banned in the exchanges that they're doing their arbitrage trading?
If we are talking about the physical coins or the traditional currencies like Chinese Yuan, then yeah, it may be difficult to arbitrage them. Unlike to digital currencies like crypto, where we can use different crypto exchanges without leaving our seats. It's okay to start doing arbitrage even if you don't have millions in your pocket but of course, the more the capital we have the better. No matter how much capital you have, but if you are not doing it right, not only it can waste your time but it will also be a waste of money.
So, we don't need to rush things but we must take our time studying how it works. Yes arbitrage is not new but I think the one that is highly restricted is the arbitrage betting, in sports. So we might still be safe on doing arbitrage trading using the currencies.