Is it permissible for a young man to permanently lead prayers in the mosque, given the presence of a regular Imam and a skilled reciter, and their frequent absence, bearing in mind that some worshippers may dislike this, while others request him to lead?

The regular Imamate (leadership) of a mosque is attained by appointment from the endower (waqif), the supervisor (nazir), the ruler (sultan), his deputy, or the Muslim community, and not through inheritance. The regular Imam is the one appointed by someone who has the authority to do so, and he is given precedence over others present, even if others are more knowledgeable or better reciters, unless the Grand Imam, his deputy, or the judge is present, in which case they are given precedence over him. If there is no endower, supervisor, or ruler, then the Muslim community or the majority of them can appoint the regular Imam, provided he fulfills the conditions of Imamate and is not characterized by anything that would invalidate it. The regular Imam is not obligated to give precedence to someone else, even if that person is better in recitation or knowledge, and the prayer led by the less virtuous is valid even in the presence of the more virtuous.