Wow! I'm an 80s Gen X'er/latchkey kid and was babysitting a baby at 13

although I have kids the same age now and no way in heck would I let them be home alone (yet - more because my oldest gets distracted easy and newly on a smart phone so not as attentive) but I try to raise them a bit '80s style' and make them independent like I was as a kid that age with other "responsibilities" hahaha...
It's interesting how things can be relative to geography, income or social demographic.
Jack and Lily while rural, were not extremely isolated, not a high traffic or busy area when compared to the suburbs. Is it safer in rural areas vs inner cities vs towns? Safer to leave kids unattended in a rural area or a busy street or suburbs?
Can kids play alone in their front yard anymore? Jack and Lily were quite young to be in their yard alone but I know people do it. They want their kids to grow up like they did. I feel this can happen anywhere sadly. The little girl in her own driveway and a delivery driver takes her! It's all unfathomable and angering...
Hoping for some answers and hope this doesn't go cold. JMO MOO
*Edited some out after reading Silly Billy's post! Hope the rest of my post is ok.