Alcohol, narcotics, or other substances may all contribute to intoxication, which can affect a person's ability to make legally binding agreements. Alcoholics may lack the judgement and mental clarity needed to properly comprehend and voluntarily engage into business agreements. Therefore, people may have legal options to nullify or withdraw agreements made while inebriated thanks to contract regulations. Similar to adults, those under a certain legal age limit are often assumed to lack the ability to form legally binding agreements. This assumption is justified by the possibility that minors lack the maturity, experience, and knowledge needed to decide wisely on contractual commitments. Minors often have rights under contract law, including the ability to reject or cancel agreements if they so choose. Fairness and the protection of vulnerable parties in contractual relationships depend on an understanding of the legal consequences of mental illness, drunkenness, and the status of children. Legal systems attempt to find a balance between fostering autonomy and protecting people who may be at a disadvantage owing to their circumstances by taking these aspects into account. This abstract emphasises the significance of determining a person's competence to agree to contracts while accounting for mental impairments, drunkenness, and a minor's age. It emphasises the need for legal systems that uphold people's rights, prevent exploitation, and also support their ability to contract freely.