However, the government policy to halt the increasing numbers of Imperial members since 1907, was established after reflecting on the experience of each new Miyake established before and after the Meiji Restoration, that were different from the 'four Imperial Prince families' that were not originally planned as hereditary families, they gradually became the permanent Imperial Family by the order of the Emperor, since there was no shortage of Miyake, it is hard to think that there was a case when Emperor had to make an exception by using the Emperor's Taiken (Emperor's right).
しかし、1907年以来の政府の皇族増加抑制策は、明治維新前後の時期に新たに興された各宮家が、いわゆる「四親王家」とは異なり、元来は世襲を予定しなかったにもかかわらず、天皇の「特旨」などによって漸次永世皇族に移行してゆき、結局、皇室典範での永世皇族制の成立に結びついた経緯への反省を踏まえたものでもあり、宮家の不足も生じていなかったことから天皇の大権を発動して例外をつくるケースが実際に発生したとは考えにくい。