Explanation
In Mexico, patting someone on the head is considered disrespectful and infantilizing, as the head is viewed as a sacred or personal space. This gesture is often reserved for very young children or pets, and doing it to an adult can be seen as a condescending violation of personal boundaries.
Local Tip
Instead of touching the head, greet with a handshake or a light hug (if familiar) and maintain respectful eye contact.
How it compares elsewhere
The head is considered the most sacred part of the body in Thai culture; touching it is a major taboo.
Patting the head of a child is often affectionate, but for adults it can be seen as condescending or intrusive, especially among strangers.
Head patting is generally reserved for children or close friends in a playful context; for adults it may be perceived as patronizing or overly familiar.