my 6 year old never had symptoms but I wouldn’t be surprised if she had it when her brother did.
Right now I don’t plan to vaccinate the two younger kids but I’m not saying I never will. To live in a world of absolutes and swearing to never change is foolish when it comes to the changing world of infections and vaccines.
If not having my younger kids vaccinated becomes a barrier to going where we want to go and doing what they want to do someday then I will probably vaccinate them. There is little to no downside in my opinion