The Angel's trumpet found in nursuries is different from common native North American Jimson weed. This Angel's trumpet plant is from India and often has pink or yellow flowers which droop noticeably. It is very fragrant though the leaves are usually massive, ugly and prone to be bug- eaten.
They are both Solanaceae, and both have the common name of Angel's trumpet.
Agreed, they are both Solanaceae so are about 1,699 more plants. I've never heard of Jimsonweed being referred to as Angel Trumpet. I pulled out the trusty Hortus III and they don't call Jimsonweed "Angel Trumpet" either.
Perhaps if these kids who are trying to find a good time should try Aconitum!