I have found a perfect rose for a children's garden. It is from Heritage Rose Garden (don't have link, but you could do a Google search) and is called Happy Child. I received it as a gift last year and it is now blooming. What a beautiful rose and perfect addition to my rose garden.
When I got the book, "David Austin's English Roses" I saw this one. Lovely! We don't spray our roses, so that we have edible petals. You can always launch ladybugs to eat the aphids on the roses- kids love seeing the ladybugs...