These days most apps collect a lot of data about its users. But why does Tinder ask for your school information?
Apps like Tinder collect personal information about their users to personalize their services and sell them products. The more information you share the more tailored the app can be for your needs. But these apps may also use or sell your data to sell you products with higher success.
If the app learns you own a puppy, they know that showing you advertisements for dog food and toys may be successful. It would be too expensive to send the ad to every single user. And the percentage of sales would be much lower as well.
This video shows you what information Tinder may have about you. It also reveals how you can obtain this data yourself.