Hey there Liliana,
Welcome to planDisney and thanks so much for your question! It sounds like you're talking about visiting the Disneyland Resort with friends and using the
Southern California Resident Ticket Offer.
According to the special offer page, each Guest (age 18+) must have a valid government-issued photo ID showing an address within a valid ZIP code (90000 to 96199), so school IDs would not work to be able to use this ticket offer. They would need a state ID or driver's license with their current address to be granted entry with these tickets.
However, if some members of your group don't think they'll be able to get a state ID in time for your trip here in a couple of weeks, then they can
call a Cast Member at the Tickets line to upgrade to
standard theme park tickets and pay the difference. That way, they'll be able to enter the parks with the rest of your group! They can apply the amount they paid for the Southern California Resident Special Offer toward the purchase of their standard theme park tickets and just pay the difference in price depending on the day(s) you're visiting.
I hope that helps to answer your question, Liliana! Thanks again for stopping by. I hope you and your friends have an amazing time visiting the Happiest Place on Earth!
Have a Magical Day,
Greg