Suppose you have an extra room in your house and you are not sure of how to use it; you can take advantage of the opportunity to earn some extra money. Many international students prefer homestay arrangements because they are cheaper and more convenient than hotels or hostels. It is also an exciting experience for both the student and the host family. Apart from the financial benefit of these arrangements, your family has the chance to gain some vital interpersonal skills.
Working in a confined space can present some specific dangers and those who are responsible for either doing the work or overseeing it have to make sure that they are aware of these risks. This is why it's important that all involved go through specific training, so that there is no confusion and everybody is clear about the challenges they face. In particular, the atmosphere in the confined space needs to be monitored and regulated and this is very carefully covered in the training.