Taller men are seen as stronger, more protective, and more in control. A tall man takes up space in a way that makes people notice him. For women, height also avoids the awkwardness of standing over their partner. If she can wear heels and still be shorter, the pairing feels more natural. It keeps the usual picture of the man as larger and the woman as smaller. Height is also easy to measure, which is why it shows up as a requirement. Attraction is harder to pin down. Beauty cannot be listed on paper the same way, but it is real and everyone knows it when they see it.