We travelled with 3 grandchildren,ages 3, 3, and 4, years ago. Nighttime activities are very iffy and I would always advise against investing the extra dollars for their sake. If YOU really want to do a dining package, desserts party, or
MNSSHP for your own enjoyment, go right ahead and make it happen. You will love any of them, and your youngster will be caught up in your excitement as much as the event.
Our little ones adored lunch at Crystal Palace, which was a completely spontaneous impulse for us. Huge hit to parade around with Pooh and friends. It was our only TS meal in a park. They grazed from snack bags, supplemented with some counter service food here and there. The play areas, fountains, and splash pads were truly their favourite activities.
They all slept solidly in their strollers through 4 nights of fireworks. They did, however, love the
MVMCP parade and finally saw their first and only fireworks that night. That was because we had the most low key, lazy day imaginable until party time. If your child is not well familiar with fireworks at the time of your trip, plan to be somewhere that you can quickly get free of the crowd and tucked in somewhere away from the noise, if necessary. It can just as easily be traumatic as it can be exciting. In MK, if you are near Crystal Palace, you can duck into the Baby Care Centre or the Main St shops.
Steer clear of Fantasmic until older. It is intense, and packed. Nowhere to run. Funnelling out of that venue is one of my least favourite things in WDW. ROL is much better than I expected, but not worth a dinner package. There are lots of seats and going in last means getting out first.
Most of all, don't overdo it it and wear yourselves down. It will kill everyone's good time. "We'll do that next time" is a good mantra, even if next time may be years in the future.