Saudis rethinking on Tribal traditions of child marriage

^that is not my personal opinion, because traditionalist Muslims don’t relay on their whims and desires to derive rulings and I’ve no intention to make Islam appeasing to Kufaar. I can care less about what you think about Islam.

As far your question, this is well known in Islam as a basic right of spouse. First evidence for this is practice of Prophet Muhammad (peace be upon him): he married (drew marriage contract) to Aishah (may Allah be pleased with her), but delayed the consummation till she was able for it. Second evidence for this is hadith of Prophet Muhammad (peace be upon him): “There should be neither harming nor reciprocating harm” [Related by Ibn Majjah, Al-Daraqutni, Malik in his Muwatta and others]. This is what scholars have concluded:
The fact that it is permissible to marry a minor girl does not imply that it is permissible to have intercourse with her, rather the husband should not have intercourse with her until she becomes able for that. Hence the Prophet (peace and blessings of Allaah be upon him) delayed consummating the marriage to ‘Aa’ishah (may Allaah be pleased with her).
Islam Question and Answer - Is it acceptable to marry a girl who has not yet started her menses?
and Allah knows best