I assumed you meant YOUR kids. We all know our own kids and what they'll likely be able to handle and what we want to potentially put up with LOL.
I was sure they'd like the fireworks but was not sure how they'd handle the whole LONG evening out and crowds, up past bedtime for hours, etc. It was one of those things I decided would be "an experiment in living." By that I mean for so many years of our kids lives we'd done things by the nap/bedtime schedule and if it didn't fit in and wasn't a major family event...it was skipped or we arrived late or left early before any crankiness set in or decided things like this we'd leave for later, for years ahead when they are older. We let the schedule go for very few things...even trying to keep it on vacation with maybe a slight shift. 2009 is our year to "experiment in living outside our kid's schedule" (now and then). This year we're keeping the schedule for normal days but when an event comes up, even if we have no idea how they will be...we're letting the nap go...or keeping them up late. Oh and my kids NEED their sleep and are big time nappers. Fireworks, birthday parties, family reunions, fire works, community events, fireworks, etc. The only rule is this has to be on a weekend and no more than once per week. It's kind of resulting in a have fun now pay the consequences at bedtime and/or the next day when they're crabby. So it's working well for vacation, fridays, or saturdays...and we all recover by monday LOL.
OT but....Each year I have a theme I start on. Some have resolutions...I resolve have more fun and I like calling it my theme of the year better. LOL My 2008 theme was, "my body is for ME". It was the first year since starting this parenting adventure that I wasn't going to be trying to conceive someone, pregrant with someone, or breast feeding someone...and all the restrictions those things imply. This theme continues into this year as well.