Is it permissible for me to persuade parents to enroll their children in Al-Azhar institutes, knowing that I work in a center that teaches cultural and religious subjects, and its administrators stipulate this condition because the center is unlicensed, and given that Al-Azhar teaches the Ash'ari creed? And is it sufficient for me to clear my conscience to explain to the parents the reality of Al-Azhar?

The Ash'ari school of thought contains clear deviations from the methodology of the Salaf, and institutions like Al-Azhar teach it. A student enrolling in such institutions offers numerous benefits, especially for bright students. If these students come to know and practice the methodology of the Salaf, they will have a clear impact in explaining and inviting people to Allah. Therefore, it is advisable to undertake the work mentioned in the question, while being careful to clarify the status of these institutions and then focusing on explaining the creed of Ahl al-Sunnah (definition) in the place where they operate.