Hemp seed used to produce hemp milk is specifically bred now and contains 0% THC it also tends to have very low levels of other non-psychoactive cannabinoids such as CBD. Just thought you might want to know, it’s not going to get anyone stoned or even make them fail a urine test, for one it would be grounds for federal investigation if it did because it is sold internationally in nation’s that have legal cannabis and where it is still deemed an illicit substance.
I hope this helps put your mind at further ease. Also, do not be upset that your daughter has decided to follow a vegan diet, the benefits to the environment and potentially her health (if she is consuming a varied and balanced diet) are innumerable. You should applaud her commitment to try and make the world a better place on an individual level. A lot of us (including myself) are too stubborn to make that kind of sacrifice.