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:
Comics

Context:
Following the success of Le Journal de Mickey (1934–44), dedicated comics magazines and full-colour comics albums became the primary outlet for comics in the mid-20th century. As in the US, at the time comics were seen as infantile and a threat to culture and literacy; commentators stated that "none bear up to the slightest serious analysis",[c] and that comics were "the sabotage of all art and all literature".[d]

Question:
What was seen as "infantile" in the United States?

comics