Hi @Koseos, Emanuel thanks for the question.
You should be able to create an Azure Static Web Apps.
However, the Azure for Students Starter subscription does not allow you to purchase paid marketplace offers:
<sup>"</sup>Exclusions: Azure credits may not be used to purchase Azure support plans, Azure DevOps, Visual Studio subscriptions, Visual Studio Mobile Center services, third-party branded products, products sold through the Azure Marketplace, or products otherwise licensed separately from Azure (for example, Microsoft Azure Active Directory Premium)."
To use Azure Static Web Apps, you will need to upgrade your subscription to a paid subscription that allows you to purchase paid marketplace offers. To resolve this issue you need to create a Pay-As-You-Go subscription with a credit card on file and try the creating your static web app again. Having a PAYG subscription doesn't necessarily mean you will be charged. it means you will pay only for what you use beyond free amounts/services.
Hope this helps.