It is not common for individuals to get married at the age of 12 or before. Marriage is a legal and social commitment that typically requires individuals to be of legal age and emotionally mature enough to make such a significant decision. In most countries, the legal age of marriage is 18, but it can vary depending on the jurisdiction.
At the age of 12, most people are still children, and their relationships are usually platonic friendships or crushes. While some cultures may have traditions or practices involving child marriage, it is widely considered unethical and illegal in many parts of the world due to the potential for exploitation and harm to the minors involved.
It's essential for young individuals to focus on their personal development, education, and building healthy relationships based on friendship and mutual respect before considering marriage later in life when they are of legal age and better equipped to make such decisions.