Dd's nursery have just introduced this policy. My gut reaction is that it is crazy - the children will fill themselves up and not eat properly at meals. And grazing all day is bad for dental health, particularly fruit (including dried fruit) and starchy crackers and rice cakes which stick to teeth.
I am aware that I could be unreasonable about this as I come from a cultural tradition where snacking is seen as unhealthy and everyone eats three main meals and kids have a light meal after school too. Elderly ladies will tell you off for feeding your toddler rice cakes at the playground and the idea of eating bread sticks in the supermarket makes me shudder... so I am aware I don't have the same view as most people in UK.
Is this nursery policy sensible? Is there any advice against it? Or am I being a bit oversensitive on this?