Surveys are often used to gather information about patients. This helps programs meet the needs of their clients. It's hard to find one survey that fits everyone. Next time this happens to you, be sure to point it out to the clinic director.
Your feedback can be very helpful to them. Maybe they even have a better choice for you, but neglected to notice your employment and marital status. Of course, they might not know either of these things about you until you fill out the form.