Question

Why were people from lower castes drawn to Buddhism?

The Buddhist belief in equality appealed to them.
Buddhism allowed people from all castes to participate.
People from the lower castes were born into Buddhism.
People in the lower castes wanted to choose their own religion.

Answer 1

because lower caste did not have the same privileges as higher classes did in the caste did and were often mistreated so they often seeked out equality.