You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Black_people

Context:
The official policy became one of biological and cultural assimilation: "Eliminate the full-blood and permit the white admixture to half-castes and eventually the race will become white". This led to different treatment for "black" and "half-caste" individuals, with lighter-skinned individuals targeted for removal from their families to be raised as "white" people, restricted from speaking their native language and practising traditional customs, a process now known as the Stolen Generation.

Question:
What were the mixed race individuals kept from doing?

speaking their native language and practising traditional customs