Multiple kids, activities, and a sick kid WWPD?

I'd see if there was anyone else who might be able & willing to take the healthy two kids to class. Otherwise, we'd all stay home. I personally wouldn't choose to take the sick one out.  That's assuming that the parent & sick kid would be staying during the class.

If the parent doesn't stay for the class, then depending on how the sick kid felt, I would probably be willing to drop off the healthy two and come back or wait in the car and cuddle and read to the sick one while the other two were inside.

I would keep them all home. Even if the sick one isn't contagious, I don't want to comfort a sick kid out and about if I don't have to.

Now, he's not contagious, and it's a competition or something for the other two, I'd do my best to find a ride for the two non-sick kids. But, of course, ages come into play.

I usually try to simplify my life, though, not cause more chaos. But that's just me.

In the situation you've presented, I would just stay home with all three.  

One sick we all have to stay home. I am a karate mom myself but it's 20 miles one way so it's impossible to find volunteers to transport a kid.

I'd do what I could to get the two healthy kids to the class. I have 4 kids and face this sort of thing on occasion. I can't keep the healthy ones home every time another one gets sick thinking that they'll all get it eventually. There are times where only one kid gets something even though it seems highly contagious. You can just never tell.

I'd probably drop off the 2 healthy ones and go back home with the other. Or, if it was far, I'd just wait in the car with the sick one. Of course, it's not super-cold here yet, so that answer might change if I had to stay in the car. Generally, I've been able to get kids ride in these sorts of cases before.

I have a bunch of kids and it isn't the case that if one kid gets sick, everyone gets sick. So if I had a way to send the non-sick kids (my mother lives here, e.g., and might be able to take them), I would do that.

If I didn't, however, we'd all stay home. I'm not taking a sick kid out amongst other kids.

Even IF all the kids do eventually end up with whatever, it just means one kid is sick one week, kid two is sick the second week and kid three was sick the third week. So if I kept them all home because one was sick they would all end up missing three weeks of their activity. There was plenty of times one kid got sick and the other two might not, or just one of the other two would. It was never an absolute given that they all would end up sick.