Good evening Cornelius and welcome to the Events Calendar forum!
Thank you for your interest in our products.
We’ll be glad to answer your questions.
How can I create paid-for tickets and link them to a product (assuming that it how it would work)?
To achieve that, you will simply need to grab a copy of our Event Tickets Plus premium add-on: https://theeventscalendar.com/product/wordpress-event-tickets-plus/
It should allow you to do exactly what you are looking for.
Simply put, that will interface with the WordPress the most popular shopping cart / online store WordPress plugins, including WooCommerce.
Let me know if that helps.
Have a great day!
Geoff B.