Mazel tov. Unfortunately for parents who aren't you, the act of providing the "consistency" you're advocating for, often DOES require dealing with repeated meltdowns, or even just maddeningly repetitive questions of "why not". Children are born wild animals (not yours, of course), and raising them is the act of civilizing them.

If there's one thing that annoys me about other parents, its seeing or hearing about someone dealing with a difficulty that your kids didn't have, and then patting yourself on the back for being a better parent. Every time you explain something to your kids, they just got it and stopped bothering you about it? Trust me when I say, you are in the minority.

> meltdowns over hearing an ice cream truck

I know for a fact, it just wasn't an issue when I was a kid, or even in our neighborhood until this year, when the trucks started parking on our street after school. For many children, that is a time of the day when they are exhausted and unlikely to be reasoned with. Maybe it's a sign their parents are "inconsistent" or whatever, but I maintain that there is a difference between a truck stopping by once every hour or 4-5 times per hour, and also a difference between an ice cream truck at the park vs stopping on residential streets one by one every day. There's no other business that works this way, it's not like they have some fundamental right, and that's not even talking about the noise pollution aspect.