Scheduled ticket delivery is primarily designed to improve ticket security.
By delaying access to ticket PDFs and QR codes, you can:
Reduce the risk of unofficial resale and ticket scalping.
Limit the circulation of tickets long before the event.
Reduce the likelihood of tickets being copied or shared.
Give attendees access to their tickets closer to the event date.
Many organisers use delayed ticket delivery for high-demand events where ticket security is especially important.