3 things React Hooks ? Front end projects cert?Redux is necessary?

I needed some help with React looked up in their server for support and they told react hooks is the future ?
Do I study react hooks ?
Second I started completing projects only with React is that cheating ?
Is Redux necessary ?

I needed some help with React looked up in their server for support and they told react hooks is the future ? yes it is https://reactjs.org/docs/hooks-intro.html
Do I study react hooks ? if u want to
Second I started completing projects only with React is that cheating ? No why should it be?
Is Redux necessary ? there are always alernatives