Inteheritance differences between men and women
A lot people like to use this as a reason as to why Islam is “oppressive” to women but what’s actually oppressive is the parent getting to decide who gets what. Other religions parent can decide to completely leave out one of their children out of their will, whereas Islam says women must get their fair share and if a parent makes a will to deliberately leave out any child for no islamically legitimate reason(such as apostasy) they will go to the grave with that sin on them. Also Islam teaches you are not allowed to dispense all your wealth to charity.
Sa’d ibn Abi Waqqas (may Allah be pleased with him) was severely ill and asked the Prophet if he could give away all of his wealth in charity. The Prophet said, "No." Sa’d asked, "Then half of it?" The Prophet again said, "No." Sa’d then suggested, "Then one-third?" The Prophet replied, "Yes, one-third, and one-third is a lot. It is better to leave your heirs wealthy than to leave them poor, begging from others."
So even giving 1/3 of your wealth is considered a lot but it was allowed, but it’s better to give it to your family.
So a Christian can single out one of his sons and leave his daughter with nothing. A Christian may even decide to leave nothing for his family and give it all away to someone else. That is not justice.
Not to mention, in the Old Testament, if any sons were alive, the sons get inheritance and the daughters get ZERO inheritance. If a Christian ever tries to convince you Islam is unfair because it gives the daughter half of what the son gets and that it should be equal, tell them their own Bible commands daughters get nothing if there is even 1 son.
There are also some situations where inheritance is larger for the women than the man for example a full sister vs a maternal brother the sister gets more, or when left with a father and a daughter, the daughter gets more. Yes the wife gets 1/8 inheritance while the sons and daughters get more, however sons and daughters are Islamically obligated to help the mother if she needs financial assistance and it is of good character to help the mother beyond her needs. My husband and his family gave all their shares to their mother because she is in need of financial assistance. If you raise your children well, they will honor you as you grow old.