Paul is 53 years old.
Explanation:
Lesbian is a term used to mention the women who are in relation with their sexual identity. In other words homosexual women are known as Lesbian. The romantic and sexual desire expressed between the females is known as Lesbianism.
Lesbians when decided to have a child on their own, they seek help from the men demanding sperm.
In the above statement, Paul rejected the request of the lesbian couple as he is 53 years old. He thought that the child may get a chance of developing schizophrenia.
Schizophrenia is a kind of mental disorder.
