At that time, most eunuchs had a low status. Generally, people from poor families have no way to survive before they enter the palace as eunuchs. Eunuchs naturally have no culture, so it is unreasonable for eunuchs to read imperial edicts. The real situation is not what we infer. Eunuch is not what we think, but the status of eunuch is not low. In fact, the eunuch in ancient times was a kind of honorific title, and the eunuch was also an official of the court, a serious official of the court. So eunuchs are not as simple as we thought. Eunuchs are more than servants.
Of course, not all eunuchs can read the imperial edict. It is easier to be a eunuch in the palace than to be a eunuch who can read the imperial edict. Ordinary eunuchs just serve some concubines and never see the emperor. Only a few resourceful eunuchs can become eunuchs around the emperor, and these eunuchs must be knowledgeable. Only in this way can they have a chance to read the imperial edict.
But in fact, it is not a casual thing to look at the imperial edict. In fact, imperial edicts are not only read by eunuchs. In the imperial court at that time, there were some specialized institutions and personnel to read the imperial edict. After imperial academy formulated the imperial edict, a special imperial envoy read it, so eunuchs didn't participate in reading it.