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How I Understand Children’s “Unexpected Behavior”— And Why I Choose to Adjust the Environment Instead of the Child —

Children often act in ways we don’t expect.
Sometimes their behavior appears sudden, disruptive, or even frustrating.
But instead of seeing these moments as “misbehavior,” I’ve come to understand them as noise—a natural kind of human variability that emerges when the environment and the child are slightly out of sync.
In this article, I explore why I focus on adjusting the environment rather than correcting the child, and how this perspective has changed the way I parent.

Thank you for taking a moment to read this piece. I’m glad you’re here, and I hope these reflections offer a gentle perspective you can carry into your own daily life.


Children often act in ways we don’t expect.
Sometimes their behavior appears sudden, disruptive, or even frustrating.
But instead of seeing these moments as “misbehavior,” I’ve come to understand them as noise—a natural kind of human variability that emerges when the environment and the child are slightly out of sync.
In this article, I explore why I focus on adjusting the environment rather than correcting the child, and how this perspective has changed the way I parent.


1. My Habit of “Blaming the Environment” Became a Parenting Philosophy

I’ve always been the kind of person who blames the environment when things don’t go well.

  • The ground is uneven, so I can’t run.
  • The desk is too small, so I can’t focus.
  • The noise is distracting, so I can’t think.

This tendency naturally carried over into parenting.
When my child behaves in unexpected ways, I don’t assume the child is “wrong.”
I assume the environment isn’t supporting them.

Of course, I’m not perfect.
There are days when I get frustrated before I manage to adjust anything.
But even then, this perspective helps me return to a calmer place.

2. Why I See Behavior as “Noise,” Not Error

In risk management, people often say:
“Humans inevitably make errors.”
But that never felt right to me when thinking about children.

Instead, I see their unexpected behavior as noise
not a mistake, but a natural fluctuation.

In music and sound design, noise isn’t just unwanted static.
With the right filter, noise can become:

  • thunder
  • insects
  • ocean waves
  • or even a musical texture

Noise is raw material.
When shaped, it becomes something meaningful.

This metaphor changed everything for me.

3. Most Adults Try to Change the Child. I Change the Environment.

When a child does something undesirable, adults often focus on:

  • how to teach
  • how to correct
  • how to discipline

But this approach can create conflict, resentment, and endless debate.

I’ve been there too—raising my voice, regretting it later.
Those moments taught me something important:

Trying to change the child often leads nowhere.
Changing the environment changes everything.

4. Environment as a Filter

If behavior is noise,
then the environment is the filter that shapes it.

  • A child who can’t run may jump instead.
  • A child who can’t reach may grab.
  • A child who’s overstimulated may shout.

These aren’t “problems.”
They’re signals.

By adjusting the environment—space, timing, tools, expectations—
the noise naturally transforms into something calmer, safer, and more harmonious.

This approach protects both the child and me.

5. I Don’t Try to Change My Child. I Try to Support Them.

My goal isn’t to correct behavior.
It’s to understand what the behavior is telling me.

Children don’t need to be fixed.
They need environments that fit them.

And I’m not perfect either.
My own reactions—frustration, impatience—are also a kind of noise.
But when the environment is right, even my reactions soften.

This is why I continue choosing this approach.


Thank you for staying with me until the end. If these ideas resonate with you, I hope they bring a bit more ease and clarity to the way you understand the children in your life—and yourself as well.

作成者: 真田夕起

koyukaisa.work」管理者の真田夕起(サナダ ユウキ)です。

北海道札幌市に住む専業主夫として、妻(看護師)と3人の娘(大学3年生、専門学校2年生、小学5年生)と一緒に暮らしています。長年白石区に住んでいましたが、2025年8月から西区民になりました。家事や育児、教育、遊び、創作について、男目線からのユニークな視点で発信しています。

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趣味:
・かたづけ
・ガーデニング
・ギター練習
・カラオケ
・英語学習
・ぬいぐるみ作り
・パソコン・プログラミング学習
・ゲーム

アレルギー:
ほぼ一年中、花粉や埃、ダニ、猫などに悩まされています。特に春が辛く、果物(特にりんご、桃、さくらんぼ)や豆乳にも反応します。抗ヒスタミン薬と解熱・鎮痛薬が手放せません。新型コロナウイルスによるマスク生活が意外にもアレルギー対策に効果的で、今では外出時にマスクが欠かせません。

その他:
・牛乳が大好きですが、温めないと消化が難しいです。
・幼少期は運動が好きでしたが、最近は運動不足で体を痛めることが増えました。ぎっくり腰をきっかけに、腹筋を意識するようになりましたが、さらに腰痛対策としてEMS、ウォーキング、ストレッチを取り入れています。
・基本的にインドア派ですが、ガーデニングや外でのバーベキューが好きです。折り紙、ブロック、プラモデルも楽しんでいます。

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