Final answer:
Proximity is one of the most reliable predictors of whom a person will date, as being near someone increases the chances of forming a relationship due to frequent contact, which is supported by extensive research.
Step-by-step explanation:
One of the most reliable predictors of whom a person will date is proximity. This is because you're more likely to form relationships with people you see often, facilitating the opportunity to get to know them. Decades of research have demonstrated that people tend to form friendships and romantic relationships with those who are geographically closer, such as those living in the same neighborhood, dorm, or apartment building.
The fundamentals of relationship formation also indicate that similarity plays a significant role. People often develop connections with others who share comparable backgrounds, attitudes, and lifestyles. Homophily, the tendency to form social networks with individuals who are alike, explains why shared characteristics like music tastes, hobbies, and other preferences can lead to connections and why you are not likely to date someone you feel would reject you based on such similarities or differences.