Discrimination my dear...
The moment you tell one of your new friends that you are a Wiccan or that you Practice Witchcraft, they alianate you, and look at you like looking at an animale...
Witches have been burnet to death and it was not very long ago. Still in India, witches are tortured... (I saw on sky news)
And the worst thing is that you would lose the Job or if you live in an apartment, you may have to find another. The neighbours may blame you for all the bad that happens to them... There are a number of problems when you accept it openly...
That is one reason we use a craft name...