Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Why would a person not want to purchase a Personal Liability (Umbrella) insurance policy?
This article has a section titled "Do you need an umbrella policy to cover your personal liability risks?" that says: If you have young children, for example, you might need a policy   because they have lots of friends. These little tikes might get into   some mischief and hurt themselves at your home. If so, you’re at risk   of being sued. Do you have people over often? Do you drive like a maniac or a   Parisian? Do you have firearms on your premises? Do you have gardeners   and housekeepers on the grounds? All these are reasons why you might   want to own an umbrella policy. Although many people in the US are homeowners, parents, drivers, etc., not everyone falls into these categories. For some people, as low as the premiums for such a policy might be,  the expected cost outweighs the expected benefit. The cost of a lawsuit may be extremely high, but someone may feel that the chance of a lawsuit being filed against them is low enough to be safely ignored and not worth insuring against. I'm probably not a great example, but I'll use my own situation anyway. Even though a liability policy probably wouldn't cost me too much, I'm almost certain that I wouldn't derive any benefit from it. I live alone without children (or firearms, pet tigers, gardeners, etc.) in a 520 sq. ft. apartment, so the probability that something bad would happen to someone on the small bit of property that I rent and that they would file a sizable lawsuit against me is small enough that I choose to ignore it.