If your an adult starting out, I would go for popularity over easiest. Python or C, as you most likely have the ability to work through one of the many tutorials without needing immediate gratification.
If you are asking for a kid that is completely new to programming. I would suggest buying them a spirograph. When they get bored with that hit them with LOGO and follow that with scratch.
If your trying to learn how to run a 3d printer, laser cutter or CNC machine. It would be far better to jump into the Arduino C environment.
In the late 70s early 80s there was an awesome toy called Big Trak that got kids thinking with a programming mindset maybe there is a new modern version available these days.
If you want to kearn how to program in ML or AI, i would suggest learning graph theory....
try learning these easy languages, they will give you the basic building blocks to learn anything else: - bash - python - golang
I learned C# after programming C-like languages for me, and it was incredibly easy. I was productive in two days. By contrast, I found ReasonML (Ocaml-like) that I gave up.
For an absolute beginner, ReasonML might be very easy. They have a fresh mental model.
With this in mind, and also considering that hinting/linting and reasonable errors are hugely useful, I'd guess that something like Kotlin or Dart would be the easiest.
Depending on how you sell it, you can bundle the charm of vintage computing with it.
I hear people have good experiences with Python and PyGame.
I'd avoid distractions such as an IDE for the start, not to confuse the learner with what is the language and what is the surrounding environment.