Hey Dario. Thanks for your question.
If the people creating events have access to wp-admin (e.g. Author, Editor, Administrator), they surely can create and edit events. If needed, please reference https://theeventscalendar.com/knowledgebase/admin-roles-and-permissions/
If they don’t have wp-admin access, you might be interested in Community Events to enable them to create events and modify only their own events, all via the front-end of the site (not wp-admin).
Last but not least, we have a pretty great Refund Policy so you can buy one or many of our add-ons and thoroughly test them.
Let me know if you have any follow-up questions.