Well, it's one of the most often repeated lies out there. It's been repeated so much that plenty of vapers believe it as well, or at least think it might be true. The truth is people of all ages are attracted to flavors, and packaging, of many types. Cigarettes don't have kid friendly flavors or packaging, but plenty of teenagers pick up smoking every day.
There is a significant difference between having a product that could appeal to minors, and targeting minors with marketing. If you're advertising on television channels popular with minors, during the times that they're likely to be watching, you're targeting minors. If you have children in your ads enjoying your product, you're targeting minors. If you have a unicorn vomiting on the box of your strawberry milkshake liquid that can only be sold to adults, and is only on display in stores or on websites that cater to the vaping industry, you're not targeting minors, you're targeting vapers.