Kids love it
That’s the thing, kids love messing about in water and in boats. As long as they can swim about 25 yards and you insist on wearing the life-jackets – for them and for you – then taking children on rivers can be a lot of fun.
Choose the kind of water appropriately and choose the day and weather and everyone will have a great time. They’ll soon get the hang of paddling, probably a lot quicker than an adult going for the first time.
It wont be long before two kids in a tandem will be proficient enough to paddle by themselves. With your boat close by to keep an eye on them though.