Personally, I don't think this would be a big issue, but it's best to read the guidelines (https://developer.apple.com/app-store/review/guidelines/), e.g. paragraph 1.1.4.

You must not use In-App Purchases for selling physical goods. Quote: In-app purchase and Apple Pay are different technologies that support different use cases. Use in-app purchase to sell virtual goods in your app, such as premium content for your app and subscriptions for digital content. Use Apple Pay in your app to sell physical goods like groceries, clothing, and appliances; for services such as club memberships, hotel reservations, and event tickets; and for donations. https://developer.apple.com/design/human-interface-guidelines/in-app-purchase/overview/introduction/