Hi there DD,
Welcome to planDisney and thanks so much for your question! Your trip to the Happiest Place on Earth will be here before you know it, so I'm glad to hear you're starting to plan all the details!
The
Disneyland mobile app is such a convenient way for groups to navigate their visits. You are able to link tickets in the app at any point - even after you've scanned your tickets to enter your first park - so you should be all set there. There is no need to have others in your group create accounts prior to purchasing tickets.
Once all the
theme park tickets have been linked, each person in your group will be able to modify their
theme park reservations, display their ticket when entering a park, and book
Lightning Lane return times if you have purchased the
Disney Genie+ Service.
Your visit is during one of my favorite times of year to visit -
the Holiday season! Make sure to stay tuned to the
Disney Parks Blog for any updates about the fun things to do and see during your visit. I would highly recommend taking a ride through the
Haunted Mansion Holiday attraction in Disneyland Park, and trying tastes from around the world with the
Disney Festival of Holidays in Disney California Adventure Park.
Thank you again for your question, DD! Make sure to come back and see us with any follow-ups you think of as you continue to plan. We'd love to help!
Have a Magical Day,
Greg