Need ideas for a project

I’m doing a school project on entrepreneurship, however I suggested a cafe that encourages people to meet up, how this is achieved is an app. Of course we serve food and offer discounts if they meet up at the cafe using the app, however my idea was shut down with problems like “how are you going to prompt customers to come back?” and “what if they meet elsewhere? “ although I already suggested the discount by meeting via the app. Any suggestions to add on to this idea or a whole new idea completely? Based in Singapore.



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