Is this joke funny?

The whole extended family was gathered at the Grandparent's home for Sunday dinner. Aunts and uncles, cousins and nieces and nephews were all there for too big a meal and love of family.

The adults were around the dining room table when in walked one of the younger grandchildren.

"Talk like a frog, Grandma and Grandpa" the little boy repeated. "Talk like a frog".

"What are you talking about, honey?" said Grandma.

"Daddy said when you croak, we get to go to Disneyworld" said the innocent little boy!