Today I took my nearly 2 year old for a visit to the pre school he is meant to be starting in the new year.. he had a great time, played nicely with the other children, wasn't shy, and the staff seemed nice. However, there was a marble run set up and the kids had access to marbles, something I would never allow my DS to play with, they also had a little pretend shop set up, where they had coins they could play with, some plastic and some real (1ps and 2ps) and lastly there was lots of arts and craft stuff with loads of tiny little bits.
Now I can't seem to stop worrying about it and my son hasn't even started there yet, at the time I didn't feel confident to ask the staff about it. I did make a comment about how my son does put little things in his mouth to which one of the staff said 'yes there is lots of little bits here but there is always a staff member in every room' well, even so I don't believe 1 adult can keep an eye on every child every second. And it only takes a second for any child to pick up a marble and swallow it. I just dread to think what could happen 
Now I feel like I can't send him there, is it normal for a pre school (for 2 year olds) to have things such as marbles and coins to play with?? I'm a first time mum so I don't know but it seems absurd to me