Affinity group travel is defined as travel for people with what kind of similarities?

Affinity group travel is specifically geared towards individuals who share common interests, hobbies, or lifestyles. This type of travel is characterized by the way it brings together people who have a mutual bond, whether it's through interests in sports, cultural activities, outdoor adventures, or other unique experiences. By traveling together, these groups can enhance their connection and enjoy tailored experiences that cater to their shared affinities.

Other options, while they might pertain to travel arrangements, don't capture the essence of affinity group travel. Similar travel budgets, for instance, could create opportunities for shared costs but wouldn't necessarily define the group's identity. Similar ages and similar geographic locations could also overlap in group travel scenarios, but they don't inherently create the cohesive bond found in affinity groups based on interests or lifestyles. Thus, the focus on shared hobbies or lifestyles accurately represents the concept of affinity group travel.