Hello there! "Estoppel" is a funny-sounding word, but it's actually a very important legal concept that helps people be fair and honest with each other.
Let's say you and your friend are playing with some toys. You both want to play with the same toy, but your friend insists that they had it first. You're not sure if this is true or not, so you go ask your mom.
Your mom reminds your friend that they had offered to let you play with the toy first, but now they're trying to take it back. This wouldn't be very fair or nice, and it would make it harder for you and your friend to trust each other in the future.
In legal terms, this is called "estoppel." Estoppel means that someone can't change their mind about something they've already said or agreed to, if it would be unfair or harmful to someone else.
For example, imagine that your dad promised to give your neighbor a ride to the airport. But then, your dad changed his mind and decided not to go. This would be really unfair to your neighbor, who might not be able to find another ride at the last minute.
In this case, the legal concept of estoppel might say that your dad can't just back out of the promise he made. He needs to honor his word and give your neighbor a ride.
Estoppel is a way of making sure that people are honest and trustworthy in their deals and agreements with each other. It helps to prevent misunderstandings, arguments, and unfairness.