Kid, I hate to break the news to you; but our parents, you grandparents or great grandparents had a hard life. They had lived through the great depression, and then served in WWII, Korea, or even Vietnam. By the time we came along, I am convinced that they figured it would better to raise a tough kid then a cuddled whimp. So yes we had knives as kids but that was the least of it; I had my first knife at 6 and my first guns by age 10. But back then we didn't have child safety seats, or airbags, nor did most people use seatbelts either. Kids back then were often given telescopes with screw in "sun" filters which were known to fail in use, which allowed some to practice a self administered form of Lasik. We had chemistry sets loaded with flamable and toxic materials, some even had real radioactive samples. We played with Klick-Klacks which had a tendency to fracture and explode. In school we were issued dissecting kits which contained razor sharp scaples and dissecting needles; which was not a big deal since we also had shop class. We ingested glue regularly while assemply countless PVC model kits while trimming parts with xacto knives. We fired off explosive fireworks until we looked like chimney sweeps, and played with toys that involved forming plastic parts at high temperatures. We had lots of other toys, like toy trains and race tracks that were plugged into non-GFI (sometimes not even grounded) electrical outlets. We flew model airplanes with real gasoline engines and garrote-like wires for controls. We even had Lawn Darts - which has since become just about the most illegal product known in the U.S. (Illegal to make, import, or sell - parents are advised to destroy any copy of the game on sight)
By today's standards it is remarkable that any of us survived to adulthood. But, we did have one thing going for us, we knew not to maliciously act out, because if we did our parents were perfectly willing to tan our hides until we lost the ability to sit for two or three days. So yes we had knives and many other things, and we also had the discipline to behave responsibly.
n2s