First, had no problem with the OP's post.
Now, real life experience that just happened today at
Disneyland. I'm there with my DW, DD1(almost 4, major disney vet), and DD2(6 weeks old, disney vet in training) along with her best friend and two daughters just about exact same ages.
First we try and get friends daughter onto Buzz, she is a big fan of Buzz, wants to go, then chickens out at last minute, crying towards ride entry, so they both get out of line.
Then we go on jungle boat. Friends daughter has been on this before, we are to the hippos, guide shoots gun(they're back), scares friends daughter, she starts crying.
Lastly, we decide to try Buzz again. I've promised the girls ice cream for lunch(bad me) and my daughter will ride with them. This time they make it to the conveyer. Wife's friend gets in(note she has baby in sling), but friend's daughter starts crying and won't get in. I pick her up, put her in the car, put my daughter in the car, then get in with my wife in the next car. Friends daughter ends up liking ride.
Now imagine you are an observer of this. Depending on what point of the situation you come in on, you may see things in many different lights. Maybe somebody thinks the kid is tired on Jungle Boat, when instead she was frightened by a loud noise. Maybe someone thinks friends daugther is being dragged onto a ride. Instead her mom knows that she will like it if she can get over the fear of the unknown.
Last situation. My DD1 has been on Matterhorn, Pirates, Splash, Thunder Mountain, TOT, etc. and likes them all. She is very tall for 3(almost 44") and has been to DLR at least 50 times and WDW for two major vacations. She loves it, like her dad(me). So she really wants to go on Space Mountain. I say ok. We go. She squeezed my arm for dear life, and at the end almost breaks into tears. She says its too fast(it seems that way) and too dark(yep - great ride, by the way). She says she will try it again when she is bigger like her cousins.
Now lets say we come out of that tunnel and she's crying and screaming. I'd imagine everyone around would think, what a terrible dad, dragging his daughter on that ride. The truth was all previous experience led both of us to believe she would like the ride. Just remember to try and not judge parents too harshly because sometimes we don't have all the info.
Thankfully we are DVC members, have AP's to both DLR and WDW and can spend 4-5 hours at the park so the kids don't get tired. We can bring our PIL to help with our newest one in January during our WDW vacation. Unfortunately for many parents, they don't have this luxury. This may be their once in five years vacation with their two kids. Sometimes they may push their kids, they will make mistakes. Hopefully most of us here can sympathize with them and not judge too harshly.
P.S. I also understand that there are the occasional terrible parent, and my sympathies go out to those kids.