Bro the sahih Hadith is written if you gotta problem that I don’t care. However you can not change the validity of it no matter how uncomfortable you are.
The hadith regarding Aisha's age being 9 is weak. People might be surprised because it's in Bukhari but not every hadith in Bukhari is authentic. The great hadith master Hafidh Al Daraqutni deemed around 200 hadiths in Bukhari to be weak.
What is the evidence the hadith regarding Aisha's age is weak?
Firstly the hadith has 3 main pathways in transmission:
1. الْأَعْمَشِ عَنْ إِبْرَاهِيمَ عَنْ الْأَسْوَدِ عَنْ عَائِشَةَ
2. هشام بن عروة عن أبيه عن عائشة
3. الزهري عن عروة عن عائشة
Another one via the transmission of:
مُحَمَّدُ بْنُ بِشْرٍ
Al A'mash was a مدلس in hadith. Mudalis is someone who claims to have heard a hadith from someone he didn't and uses the sequence of 'on the authority' I.e عنعنة
Al Zuhri also practised تدليس
Muhammad ibn 'Amr is weak in hadith transmission
And the smoking gun in the chain is عروة
It was said about him after he travelled to Iraq: قيل فيه اختلط/ساء حفظه/كان يدلس:
[[He became confused and his memory became poor and used to practice transmission of hadith from someone he did not hear from]].
ومالك لم يقبل روايته بعدما صار إلى العراق ، مع العلم أن كل الذين حدثوا عن هشام هذا الحديث من أهل العراق
[[Imam Malik never accepted any transmission from him ('Urwa) after he travelled to Iraq.]]
The funny thing is every transmission on Aisha's age being 9 was collected in Iraq and transmitted from Urwa when he went to Iraq.
Also another problem which contradicts Aisha's age from Sahih Bukhari:
ورد في [ البخـاري – باب جوار أبي بكر ] أنّ السيدة عائشة رضي الله عنهـا قالت : [ مـا أعْقـل أبواي إلاّ و همـا مسـلمان ] ، و أنهـا كـانت مدركةً [ هجرة الحبشة الولى
"I became of the age of reason knowing my parents always as being Muslim".
"And she had reason when the first hijrah to Habasha occurred."
According to all historians, the Hijrah to Habasha occurred in the 5th year of the Prophethood. There is no chance on earth she could have been 9 when the Prophet saw married her when she remembered the events of the hijra to Abyssinia as an event where she had reason.
Anyone wants to read more on this topic, get these books in Arabic, the evidences that she wasn't 9 is so numerous it is practically impossible.
السَّنَا الوَهَّاج في سن عائشة عند الزواج
زواج السيدة عائشة ومشروعية الزواج المبكر والرد على منكري ذلك