Converting a $100 Google Play gift card to cash is an illegal and unethical practice in many regions. Gift cards are designed for specific uses within the digital ecosystem provided by the company that issues them, such as Google.

Engaging in such conversions undermines the integrity of the gift card system. It not only violates the terms and conditions set by the issuer but also disrupts the normal flow of legitimate transactions. This can lead to financial losses for both the cardholders and the companies involved.
Moreover, attempting to convert gift cards to cash often exposes individuals to various risks, including fraud. There are numerous scams associated with these conversion attempts, where people may end up losing their gift card value or even personal information. It is always advisable to use gift cards for their intended purposes rather than seeking illegal ways to turn them into cash.