Becoming someone's legal guardian is a complicated process. In Texas, a person first needs to fill out an application and then receive court approval. During the court proceedings, a judge will determine if someone is truly in need of a legal guardian despite being over the age of 18.
While it can be difficult to think about your own mortality, it is often vital to caring for your family in the event of your unexpected death. Without a will, everything you own is in jeopardy. Your children may not even end up where you want them.