Why is the && block not available?

I thought that the && boolean block could be used instead of nested if statements.
Why is that not available on this Puzzle?
Thanks for any clarification!

I love the fact that there is always more than one way to solve a problem in CS.

My guess is that the && and || are concepts that haven’t been taught and that if/else has already been taught, so nesting if statements is the “only” way to solve the problem of needing more than one condition right now.

Do you think that you will have the students click show text and have them type &&? It may be fun for students who are ready for that.