Topic: Simple games to introduce a newbie to gaming?

And by newbie I mean my mom.

Long story short I recently bought a 2DS Ocarina edition, my first Nintendo console since a GBA, and my mom asked me if I could teach her how to play something.
I thought of starting her with a simple platformer with few actions and mechanics since she's not accustomed to even using a computer. Something along the lines of the original Crash Bandicoot trilogy comes to mind where you just move, jump, spin at the beginning and it introduces you to new mechanics little by little.
I'm thinking if a Mario game can be played by little kids maybe it can be a good starting point for someone without any computer experience but I've barely played any Nintendo games in my life, just a couple GBA Metroids and recently Ocarina. As you might imagine I'm completely lost as where to start looking, so some recommendations would be great!

Also, any comments with similar experiences would also be nice, thanks in advance!

Animal Crossing

@Cavant
Welcome to gaming world, Mrs Cavant.
Game genres themself are not just limited to Platformer like Mario or Crash Bandicoot.
There are a lot of genre that available such as Action, RPG, Simulation, Platformer, Adventure, Sandbox, Rhythm, Party, Strategy, Racing, etc.
I will mention at least 1 3DS game from each genre that Easy for Newbie, especially for women.

Easy Platformer :
1. Super Mario 3D Land
2. Poochy & Yoshi Woolly Island

Easy RPG :
1. Fantasy Life
2. Miitopia

Easy Simulation / Life Simulation
1. Animal Crossing New Leaf
2. Style Savvy Fashion Forward
3. The Sims 3 Pets
4. Nintendogs + Cats series (Toy Poodle / Golden Retriever / French Bulldog)
5. Tomodachi Life
6. Disney Magical World 2
7. Imagine: Fashion Life

Easy Party games
1. Cooking Mama series
2. Mario Party: Top 100 Mini Games

Easy Racing
1. Mario Kart 7

Easy Rhythm
1. Project Mirai DX

Easy Strategy
1. Story of Seasons: Trio of Town

Happy playing.

I think you should avoid games where you have to manually control the camera angle. I find whenever I watch newbie gamers play that seems to be something they have a lot of problems with. Maybe go for a game like New Super Mario Bros. 2. It has very simple controls and straightforward gameplay.

Animal Crossing is an excellent relaxing and fun game for new gamers and well suited to most stereotypical mothers (no offense intended, it just tends to be that way)

Another easy game to pick up is any of the recent Pokemon titles. Those games are designed for very young children to be able to play. Just tell her to talk to all the people she sees in towns, the game itself gives you all the training you need.

Well, the only game series my mom actively wants to play is Professor Layton. This is mostly due to its puzzle-solving gameplay that encourages thinking instead of that violent arcade noise she claims most other games to be.

But aside from Layton, Animal Crossing, like others have said, is a perfectly relaxing game you can do anything you wanna do in without demanding too much from the player.

I second Professor Layton, my aunt absolutely adored the series, played them all to the end.

There’s also another for DS she enjoyed... Ace Attorney I believe? Maybe give Layton a try first.

Not sure if it's her cup of tea, but wouldn't Starfox be pretty good? It's on rails, so all she has to do is steer the ship out of the way of a few buildings and try to hit as many enemy ships as she can along the way.