Everyone in the Liechtenstein family, except for the reigning prince and his wife as well as the heir and his wife, have regular jobs. Most male members of the family are involved in the world of finance, only two of them for the bank owned by the family, are running agricultural estates or are something along these lines.
A similiar thing can be said for the Grand Ducal Family of Luxembourg. The children of the current Grand Duke except for the Hereditary Grand Duke will be expected to make their own living in the future, just like their uncles and father's cousins do.