Electrolytes are essential to well being, in very hot weather.
Dehydration is a serious problem with health.
I will buy any, if I need too.It's a matter of getting it into you...and feeling better.
Young children are very much at risk, good idea to carry some in the car in a cooler bag. Same go's for older people.
Yeah, you do have to watch dehydration with little ones. I found breastfeeding an awesome safety net in that respect as it meant I have always had something on hand for them to drink that will rehydrate them and give them energy. Might consider carrying some electrolyte powder now they're getting older.