Q: Translate ""And how should it be otherwise?" to Czech?
Yes: „A co jiného se dalo čekat?

Q: Translate ""That you are never beaten."" to Czech?
Yes: "A že vás nikdo nepřelstí."

Q: Translate "All these people have made mistakes." to Czech?
Yes:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Všichni tito lidé dělali chyby.