COVID and Kids?

How bad /dangerous /serious is this virus for toddlers and kids ?

How likely it if to get this virus through surfaces ?

We went to a park .. no one was their ,but my husband open the water hous ( don’t know why he did it! 🤯🤯🤯🤯) and them a few min later he removes a leaf out of my toddlers mouth😳😳🙈🙈🤷‍♀️ he said .. I’m more worried of my baby choking than that virus 😫😫😫