Soaps for kids

Hi all,
Is there any particular age from which children must start using the soap to wash their hands? I have heard that bacteria and virus can easily be transmitted through soaps. Is it so? Will sanitizers serve the purpose of a soap. As children's hands get dirty very fast compared to the elders, what has to be done in order to keep the tiny hands clean? I would like to know about the touchless soap dispensers too. Can kids use it instead of of normal soaps? What are your views on it? What do you mothers prefer? A normal soap or a hands free soap dispenser ( http://www.dispenser.com/touchless/ )? Share your views. Thanks

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About Jubylinex
Birth: December 31
On Bemom.com since: Mar 5, 2018