Hello there, Viviana, and welcome to planDisney!
It's a pleasure to hear from you and thanks for bringing your question to us. I'm excited to see that your visit to the Disneyland Resort will be starting in just a couple of short weeks. As a child, no summer would ever be complete without a day spent at Disneyland Park and it looks like you're kicking off your summer in the perfect way!
It sounds like you're already well prepared for your trip. Have your family members with smartphones already downloaded the
Disneyland Mobile App? If your family decides to split up during the day, it will come in very handy to have the App on multiple phones.
Since
Genie+ was not purchased along with your tickets, you'll have to purchase it after scanning into the Parks for each day that you'd like this feature. It won't be an issue that only certain members in your party want Genie+. When you go to purchase it within the App, you'll have the opportunity to select which party members (among your eligible linked tickets) would like Genie+ added to their ticket. Just omit the Guests who don't want to purchase it from your selection. It'll be fine that you have Genie+ and non-Genie+ tickets linked to your account. When booking Lightning Lanes, only eligible party members will be shown.
Pixar Fest will be going on during your family's visit, so I hope that there are some Pixar fans among you! You can take a culinary adventure throughout the Resort using this handy
Foodie Guide for Pixar Fest! That Pixar Fest Cake looks so yummy and I'm looking forward to trying it on my next visit.
Viviana, I hope this answer was helpful for you. Please don't hesitate to come back again whenever you have more questions! We'd love to hear from you and you're always welcome at planDisney. I wish you and your family a truly magical visit to the Happiest Place on Earth!
Wishing You a Great, Big, Beautiful Tomorrow!
-Al