Quoted from mbaumle:

I’ve got a lot of young kids in my family. Top 4 favorites:
-Super Mario Bros
-Jacks Open (shockingly)
-Lights Camera Action
-Attack from Mars
The Gottlieb flippers really lend well to them being able to actually control the ball. They love it. None of them actually know what’s going on gameplay wise but they like each one for a different reason:
-Mario because it’s Mario.
-I genuinely don’t know why they like Jacks Open. I thought it was for the chimes, but they don’t gravitate towards any of my other EMs. I’m thinking it’s because the drops are easy to hit.
-Lights Camera Action exclusively for the gun fight and watching the playfield spin around. Literally nothing else.
-Attack from Mars because they like “killing” the mothership.
Also, I’ve found they definitely prefer games with the button launcher. It’s just easier for them to launch the ball into play than it is to grasp and pull back on a plunger.

Quoted from SantaEatsCheese:

EM: Any drop target game. I would recommend El Dorado
Early Solid State: Black Knight
The above games are easy to explain to a young child.
80s A/N: Pinbot
90s DMD: World Cup Soccer 94: Broadest appeal agewise. Little kids can always just score goals.
90s DMD with budget: My little one plays Attack from Mars the Most
90s DMD for older kid, Data East Jurassic Park... kids love watching the dinosaur eat the ball.
Modern: Not much for little kids, but Stern Jurassic Park, Mandolorian, or Star Wars for theme.
Remember that little kids have a tablet in their hands from a young age and they are more interested in the tactile feel/experience of the game.
If I had to give a single recommendation it would be World Cup Soccer.
It's easy. There are lots of toys. If you don't understand the rules you can just shoot goals. There is a giant puppy dog on the translite for crying out loud.
Source: I have a 5, 8, and 10 year old.

Quoted from Mr_Tantrum:

What age range are you talking about, and if specific kids what are their interests?
Most all kids love dinosaurs - Jurassic Park
Are they Mario fans - Super Mario Bros.
Simple rule sets - early 90's Bally/Williams of your choosing

Quoted from 6S3NC3:

Most kids will get bored with anything after playing for a few months. Just keep rotating when it happens. Keeping it fresh is the best thing if you want them to stay interested.

Quoted from Mr_Tantrum:

I’ve been thinking long and hard on this, and my top 3 pins for young kids would be:
1. The Walking Dead
2. Rob Zombie
3. The Sopranos

Quoted from Mr_Tantrum:

Yeah, I’m slow like that sometimes.

Quoted from TigerLaw:

Ultimately, small kids like simple games they can understand. A game like Target Alpha will be easier for them to understand than Mandalorian, though they may like the relatable theme, flashy lights and nice display more…they will never the learn the rules but can easily learn the rules of Target Alpha.
Pinball machines are so complex today, they are a bit daunting for kids if the kids are not in to pinball. Shrek is pretty strait-forward, many of the SAM games are pretty approachable.