Do you have a store that sells tickets for events or tours, or a product with multiple variant options that can be selected in various quantities in a single booking? Unfortunately Shopify does not provide this functionality as a standard feature (more on variants can be found here).
We have developed a custom solution that will enhance the functionality of your variants by allowing them to accept units.
Real World Examples
One of our users provides various tours and use our custom solution to allow the customer to select tickets depending on school status, age range, or a family package.
You can check out their full site here.
Another user of the app has included this functionality to organize their various types of vacation tours.
If you are interested in incorporating this functionality into your Shopify store please submit a ticket, and reference this article.