What others are saying is true and always has been, even in the wristband era.
You can wander to your heart’s delight and you can spend all the money you wish.
But if you want to get on a ride, you will be asked for your guest ID by CMs at the head of all queues to rides that are in operation.
So, make sure everyone has their room key or make sure your designated responsible person has all the keys. For most guests this isn’t a problem because their park tickets are on their room keys. It’s the same as the room key fast pass at Universal Studios and IOA, show your key and get a ride.
However, if you are a daytime guest in a park that is closing for a night time hard ticket event, you WILL be herded toward the exit and you WON’T be allowed to visit the shops on your way out if you don’t have an event wristband.