I'm so glad i have just found this thread!!! i was just about to post the same thread!
My son is also 5, 6 in July, but pretty young for his age. there are a lot of kids round our way, but all a little older than my son, and i see them up to alsorts. they have cottoned on that a little boy lives in our house and knock and ask if he can play out. I have to say no, and my little boy breaks his heart, so i was wondering if i was being damaging and being too over-protective. My son is quite young and very impressionable, and would be easily led etc (his favorite line is 'because 'so and so' said to do it, or 'i did it cuase 'so and so' said it would be funny) so i just dont think i could do it! i feel like im isolating him, and adding to the 'computer generation', but i just dont think i could trust him!
i feel so much better knowing that other mums are equally as cautious!!! it only take a few seconds to abduct a child, and although dramatic this plays over and over in my head.