Question

Scenario 1:

John, a 17-year-old high school student, entered into a contract to purchase a car worth Php 500,000 from a car dealership. However, John's parents are unaware of this transaction. The car dealership now claims that John is legally bound to fulfill his obligations under the contract. On the other hand, John argues that he does not have the legal capacity to enter into a contract at his age.

Based on the given scenario and the provisions of the Civil Code, determine the legal capacity of John to enter into a contract.

Scenario 2:

Maya, a 70-year-old widow, was diagnosed with dementia by her doctor. Due to her condition, Maya's neighbors noticed that she often signs documents without fully understanding their implications. One day, Maya signed a document transferring her ownership of a valuable piece of land to her caregiver. Maya's children now contest the validity of the transfer, arguing that Maya's dementia prevents her from legally entering into such transactions.

Applying the relevant provisions of the Civil Code, analyze the legal capacity of Maya to enter into transactions given her diagnosed dementia.