I remember when lice broke out in my sons class and I got upset because no one told me. This was not the first time people didn’t tell me about lice. Of course I ran to the store and purchased everything I needed. Then I thought about what it would have been like if I couldn’t afford it.
I thought the lice had swept through the whole class but it only turned out to be a few kids.
RID is some expensive stuff so you might as well do all things you can to prevent it.