Is it normal for curiosity with Fire?

My son is 7 years old and over all a great kid. He does his chores every day (sometimes more enthusiastically than other days), works hard in school and listens when we tell him things.We have a wood stove and he helps my husband when he starts a fire. He helps carry wood into the house and things like that.Well, yesterday while I was cleaning the kitchen from dinner he decided to take the lighter and light some paper in his room. He must have lit enough to cause a good bit of ashes. Then he tried to fix it by using the vacuum to clean it up and of course that just caused more smokiness.At first, I didn’t know what was going on and was worried about a leak in our chimney or some thing and was worried our house was on fire but then found out he was using a lighter.He has a tv in his room and we immediately took the Roku connected to it (which makes the tv worthless for them) and had a very serious conversation with him about using lighters and starting fires and why it was so dangerous.I am also thinking of not letting him play in his basketball game Saturday just so he realizes the seriousness of the situation.Is it normal for little kids to be curious with Fire? Would you let your child then go on to play in his youth basketball game or take the week off? He never had done anything like this before and I am at a loss. via /r/Parenting http://bit.ly/2FYu6RT