Question

Some may argue that learning another language is difficult, and they are probably right. But there are more

Answer 1

Answer: to address an opposing view about the benefits of learning another language.

Explanation:

The sentences were included by the author so that the opposing view about the benefits of learning another language can be addressed.

This can be seen when the author began by pointing out that "some may argue that learning another language is difficult", therefore, in this case the author is addressing a opposing view so as to show them the advantages that comes with learning another language.