Tobacco use can have a variety of negative impacts on families. Tobacco products are expensive; therefore, the use of tobacco products can lead to difficulties over finances. In addition to conflict about finances, tobacco use can lead to conflict between family members when some use tobacco and others do not. Parents, children, and spouses might disagree with the use of tobacco by a family member, leading to increased conflict and stress. Tobacco use can lead to increased occurrences of illness, which can also add strain to familial relationships.