Final answer:
In Texas, individuals under 18 need a signature from a parent, guardian, or employer on their driving permit or license applications. Various age-based legal requirements, including for driving, aim to ensure public safety.
Step-by-step explanation:
Potential Texas drivers who are under the age of 18 must have their instruction permit or driver's license applications signed by a parent, guardian, or, if neither are available, a responsible employer.
The minimum age requirement is often in place as a form of legal discrimination to ensure safety and responsibility on the roads.
Legal age requirements vary from state to state, but they are common for many activities, such as smoking, drinking alcohol, and driving, and are justified by the government based on public welfare and safety considerations, despite the general principle of equal protection.