There isn't a specific data or statistic to support the statement that "Most learn American Sign Language from older brothers or sisters." However, it is common for siblings to have some influence on the language acquisition process of their younger siblings, including American Sign Language (ASL). Siblings can serve as role models, offering continuous exposure to ASL and providing opportunities for practice and communication. While it may not be accurate to claim that "most" individuals learn ASL from older siblings, sibling influence can play a significant role in the learning of sign language for some people.
