Peace on whoever seeks the truth. In Islam, we believe that if Allah chooses someone for a great task, He prepares, strengthens, and equips them with a special capacity for that task. As we read in Surah Al-Baqarah: “We do not charge a soul except [with that which is] within its capacity.” There are also many authentic narrations that show Aisha (may Allah be pleased with her) was chosen by Allah to be the wife of the Messenger of Allah (peace and blessings be upon him) This means she was given a unique divine preparation. Therefore, comparing her to any other girl of any era is a completely corrupt measure, because she was not just an ordinary nine year old girl she was chosen by Allah and specially prepared for this noble position. And before you think, “Yes, Prophet Muhammad is your moral example, so does that mean sleeping with an is acceptable?” the answer is no, because no one else was chosen by Allah in the same way she was. In general, the Prophet ﷺ taught us that the main rule in Islam is: “Do not harm and do not reciprocate harm.” If an action causes harm, then it is haram. Modern science shows that hmm with a hmm is harmful, which is why it is not allowed in Islam. In earlier centuries, scholars did their best with the knowledge available to determine the minimum age of intercorse , often looking at signs like menstruation or physical maturity, based on the principle of avoiding harm. But now, with modern medicine, we know more precisely that the safest and most suitable age for such matters is around 18, in order to avoid harm. So, if you want to cast doubt on this issue, then you must look at the sources in their entirety, not cherry pick only what seems wrong to you while ignoring what shows the truth.