Hi there Marissa, welcome to planDisney! We're so glad you're here!
Disney Genie+ Service can be such a great way to maximize your time when visiting the theme parks! Since we're not local to the Disneyland Resort, we purchase it each time we visit.
There should not be any restrictions in terms of age and what attractions you are able to secure
Lightning Lane selections for during your visit as long as you purchased the service. If you have little Mouseketeers that do not measure up to the height requirement, they would not be able to experience that attraction, even if you have booked a Lightning Lane selection. When you go to book your Lightning Lane selections, you have the option to select all members of your party, or you could uncheck the box of those who do not want to experience that attraction.
I love to use the
Disneyland app when browsing which
attractions we want to experience. Open up the app, and tap the location icon on the bottom navigation bar. You can then click "Filter" in the top left-hand corner, and you'll be able to filter the list of attractions by thrill factor, height, and several other factors. It will then populate a list that matches what you'd like to search for!
One of the things I love most about Disneyland Park and Disney California Adventure Park is that there is truly something for everyone! If you're a thrill seeker, I highly recommend Indiana Jones Adventure in Disneyland Park or Incredicoaster in Disney California Adventure Park. If you have a member of your party who is not into thrill rides, there is plenty to enjoy in Fantasyland in Disneyland Park, as well as some great attractions over in Disney California Adventure Park such as The Little Mermaid - Ariel's Undersea Adventure.
I hope this information is helpful for you, Marissa! I have taken many trips with kids under the age of 10, so I'd be happy to answer any other questions you may have,
please come back and ask!
Have a magical day,
Melissa