All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
You should know, dear brother, that a Muslim should be keen on asking about matters that benefit him in his religion and entail enjoined action or belief and should refrain from asking questions about anything else. Your question falls under the category of the matters which if one has knowledge of them, it does not benefit him, and if one is ignorant of them, it does not harm him. Anyway, the ages of the Jinn is a matter related to the realm of the Unseen, and any statements made about such matters are invalid unless they are supported by evidence from the Quran and Sunnah. However, we did not come across any evidence regarding the issue you asked about.
Allah Knows best.