Hi Brittany,
Some hosts enable the Instant Book feature to allow guests to make same-day reservations, but many also set cut-off times. This ensures that the listing is available when the host is able to accommodate guests or meet specific requirements, such as HOA car registration.
This feature can be especially helpful for Airbnb listings categorized as hotels or similar properties that offer 24/7 reception or staff available to assist guests, even during late hours.
If you'd like to provide feedback to Airbnb about this feature, you can do so through their feedback form here:
https://www.airbnb.com/help/feedback
I hope this information is helpful.
All the best,
Upfish Management