The entire Angry Birds franchise has tallied more than 1 billion downloads since it originally debuted in 2009! Angry Birds 2 just passed the 20 million mark in just one week!

[NiKKoM]

Barozi said:

You missed the part where I said that it's more luck than skill. And that's what keeps them playing. Even if you suck you can advance eventually by pure luck.

Seriously though I played several hours of Angry Birds to know what I'm talking bout. I've had pigs rolling through the whole level and they didn't die even though they should (and they usually do); I've had wooden planks on pigs (with no space in between them) with big stones falling on them and neither did the planks break nor the pigs die. That's either bad physics or bad game design. In either way it's inconsistent enough for me to give up. I do come back but usually can't play more than 3 levels until I could throw my controller or phone against the wall.

All levels should be beatable in several ways, but they aren't. A lot of them have only one solution. You can't even choose what birds to pick next. So much for a puzzle game.

As I said, Star Wars isn't so bad. Angry Birds Trilogy is hell.
Also the sounds in this game are annoying as shit.

Its pretty clear that you kinda suck at Angry Birds, but thats not the games fault.. Millions of people are enjoying it..I'll bet your kid is better at it then you..  its probably one of the most popular games out there.. 6 years and still going strong..
 
Anyway not all pigs die from stones on them when the fall height and speed isn't high enough.. 
Levels ARE beatable in several ways.. but not at the start when they ease you into the game.. you said yourself you gave up.. and in 2 you can pick your birds (from a carddeck. you can pick from 3 birds..) Heck in 2 the levels buildingblocks are randomized..