Actresses and their age during their 1st leading roles

1) Mahima Makwana was 12 during Sapne Suhaane ladakpan ke 2) Avika Gor was 14 during Sasural Simar Ka 3) Priyal Gor was 16 during Ram Milayi Jodi 4) Sarah Khan was 18 during Bidai 5)Tina Dutta was 17 during Uttaran 6)Jannat Zubai was 16 during tu aashiqui 7)Reem Sheikh was 16 during Tujhse hai Raabta 8) Priyanshi Yadav is 17 in Pandya Store

It's quite weird that so many actresses debut at such a young age that too opposite a guy that is decade older.