You have assumed incorrectly.
If adults would avoid purchasing potentially deadly products because they were pretty, the market would alter the product.
One death does not a panic make. Children and pretty things have always been a hazard. Teaching children the difference between pretty things that are good and pretty things that are harmful is part of the normal lessons of life. Don’t shuck this off on manufacturers expecting them to create rubber rooms for everyone.
Wow, continuing with a bad assumption doesn't necessarily make it true. Recall "If you like your plan..."? you are doingt eh same thing. People don't buy them because they are pretty, hell, you can't even see the product when you buy it. People buy them because they are convenient and effective for the intended job. Enough with the "pretty" stupidity.