Shaking hands to seal a bet is a traditional and social gesture that has been depicted in movies and literature as a way to make an agreement feel more formal and binding. However, it is not a requirement. The enforceability of a bet typically depends on the laws of the jurisdiction where the bet is made, the clear agreement between the parties involved, and the consideration exchanged (which could be money, goods, or services).
In modern times, a bet can be made and agreed upon without any physical gesture. People can make bets verbally, in writing, or even online through various platforms without ever shaking hands. The key elements for a bet to be considered valid are usually:
1. Offer and acceptance: One party must make a clear offer, and the other party must accept it.
2. Consideration: Something of value must be at stake. This could be money, goods, or services.
3. Intention to create legal relations: The parties must intend to enter into a binding agreement.
4. Certainty: The terms of the bet must be clear and certain.
Therefore, while shaking hands can be a part of the ritual of making a bet, it is not a legal requirement for the bet to be valid.