So ethically, it should be everybody's responsibility to ensure that TEFL tourism operates sustainably, and it is meeting the intended outcomes, and it is satisfactory for the community. Ultimately, it should be there for the community. And teaching English as a foreign language, the ultimate aim generally is, and should be, to improve English capabilities amongst the local community. However, the industry has changed a lot. We've now got these profit driven organizations who are offering these TEFL type packages, whose motivations are not necessarily to meet the community's needs, but instead to make money for themselves. So they are definitely an area that I think needs to be investigated. And there should be some kind of regulation. They have a moral and an ethical responsibility to create tourism that benefits the local community. However, I suspect that this frequently is not the case, as we've seen in many other areas of tourism. There's also an argument to say that the government should crack down and should really monitor it. However, many governments have lots to do. They might not have very big budgets. They might not see that as a priority. So it is difficult to measure. Measuring learning outcomes and comparing the difference between having a tourist doing that and having somebody else doing that isn't necessarily an easy task. It does require resources. It does require investment in time and money. And many destinations won't have that.