what are these mushrooms?

Hi all

Been picking these mushrooms out of a flower bed for the last week. Since i used to cultivate mushrooms in my early 20s i have a good knowledge of how fungi work and know that just picking the shrooms alone wont do anything to the mycelium and they will keep growing regardless.

So what are they? How do i kill it? and are they dangerous to kids?

 

Not sure but your could try a fungicide drench