The age that kids quit believing in the Easter Bunny is usually between the ages of 8 years old to 10 years old.
Although some children or kids might stop or quit believing in the Easter Bunny as early as age 6 to 7 years old.
It can vary from child to child.
I personally quit believing in the Easter Bunny when I was 6 and my brother he quit believing in the Easter Bunny by age 8.
My daughter still believes in the Easter Bunny and she's 10 now.
But my son who is 5 no longer believes in the Easter Bunny.
So it can be highly variable from child to child on when they stop believing in the Easter Bunny.
And even though my son no longer believes in the Easter Bunny at age 5, he still likes to hunt and gather Easter Eggs and still has fun with the Easter Bunny, even though he knows that it's someone dressed up as the Easter Bunny.
So it's still a fun time for him and so kids can still hunt Easter Eggs and have a fun time with the Easter Bunny even if they don't believe in him being real or not.
By age 6 to 8, a child's critical thinking skills improve and they usually start asking logical questions, on how a bunny visits every house or delivers eggs, although my son started questioning this before he was 5.
And by ages 8 to 10, most kids also piece together clues or hear the truth about the Easter Bunny from older classmates or even siblings around 8 to 10.
And it's also very common for older kids to pretend to believe in the Easter Bunny as they don't want to ruin the holiday magic or they are worried it might affected their Easter Baskets.