“Agoraphobia is fear of and anxiety about being in situations or places without a way to escape easily or in which help might not be available if intense anxiety develops.  The situations are avoided, or they may be endured but with substantial anxiety. About 30 to 50% of people with agoraphobia also have panic disorder.  Agoraphobia without panic disorder affects about 2% of women and 1% of men during any 12-month period. Peak age at onset is the early 20s; first appearance after age 40 is unusual.”

Merck Manual Professional Version (https://www.merckmanuals.com/professional/psychiatric-disorders/anxiety-and-stressor-related-disorders/agoraphobia)