We had our showers without the kids and I preferred it that way. I think my kids would have been totally overwhelmed by all that attention on them and all the gifts. Personally, I view showers as an event for the parents and not the kids eventhough the gifts are centered mostly on the kids. (I think babies at baby showers are a different matter than older kids)
However...you know your kids best and if you want this to be a family event, then go for it!
