His father was furious, to say the least. All Might's true form being revealed had him throwing a temper tantrum anytime the previously ranked number one hero was mentioned. It reminded him of how angry Bakugo was while winning first place in the sports festival. They recieved the prize that they were after, but both parties so no honor or glory in how they won, and that made them more furious than Shouto had seen before.
Due to his father's temper tantrum, he and many of his siblings had done their best to avoid the house. Enji's rage in general wasn't something that would subside normally. He'd likely be furious about the circumstances for as long as he lived. It didn't help at all that every news station was chatting about All Might's retirement. Many of them even listed their concerns that Endeavor was going to rise up to be the number one hero by default and Shouto had to agree.
Despite the fact that the world had lost it's greatest hero, the streets were filled with civilians. If one weren't looking well enough, they might mistakenly think that today was no different than any other day. However, people were whispering, trying to keep their concerns out of the ears of children. With the fall of a great hero, they were trying to keep pretending that the world was safe from villains, that nothing happened.
It really made Shouto have to consider the implications of his father’s temper on his job and their family.