Can an avoidant change? What 59 years of data says

I am both the evidence and the warning

I was dismissive-avoidant for most of my adult life. For years I saw it as a strength. I am now securely attached, and I help other people get there.

So when someone tells you "avoidants never change", I am living proof that they are wrong.

But one person changing does not tell you whether your partner will.

What the longest study found

In 2019, researchers pooled five long-running studies: 628 people born between 1920 and 1967. Together the studies cover ages 13 to 72, a span of 59 years.

Three findings matter for you:

• Avoidance went down with age. Steadily, across the whole of life.
• Anxiety rose into young adulthood, then fell through middle age and later life.
• Being in a relationship went with lower anxiety and lower avoidance at every stage.

One caution. The researchers scored attachment from personality ratings collected at the time, not from a modern attachment questionnaire. And an average trend is not a promise about one person. Some people barely move.

Still, the old idea that your attachment style is set at age five and never shifts does not survive this data.

What makes change more likely

Wanting it. In a 2020 study, most people said they wanted to be less anxious and less avoidant. Those who wanted to change tended to move in that direction over time. Wanting is not enough on its own. Without it, though, very little happens.

Good experiences of depending on someone. A group of leading attachment researchers set out a model in 2018 of how partners help each other become more secure. For anxious people, security grows through experiences that build confidence in themselves. For avoidant people, it grows through good experiences of relying on someone, where needing a person turns out to be safe.

Read that second part again. It does not say "through being pursued". It does not say "through ultimatums". It says through moments where leaning on someone went well.

A steady partner, plus time. In one experiment, people played through an interactive story about a relationship, making choices at each step. Insecure people made more choices that damaged the relationship. But over the story, most people's choices got better. A supportive partner in the story sped that up. Anxious and avoidant people improved too, only more slowly.

What change looks like up close

People expect a breakthrough: a tearful speech, a big apology, a new person overnight. That is almost never how it goes.

Real change is small. It is a moment where the avoidant person does the thing they normally dodge, and finds it was easier than they feared. "Oh. That's it?" Then they do it again. After a few times it starts to hold on its own.

So watch for small, repeated behaviours:

• They come back to a hard conversation without being chased.
• They tell you they need space, and say when they will be back.
• They ask for something. Help, comfort, your opinion.
• They stay in the room when you are upset.

One of these, once, is a good day. The same ones, month after month, is change.

What you can do, and what you cannot

You can be clear and calm about what you need. You can make it safe to be honest with you. You can notice and say so when they stretch.

You cannot want it for them. You cannot explain them into it with articles and videos, including mine. And you cannot shrink your own needs to zero so there is nothing left for them to avoid.

The question that matters for your decision

"Can avoidants change?" has an answer, and the answer is yes.

It is also the wrong question to build your life on. "Can" is about people in general, and you are not in a relationship with people in general.

Ask these instead:

1. Do they see the pattern, in their own words?
2. Are they doing anything about it without me pushing?
3. Over the last three months, what have I seen them do differently?

If you have real answers to all three, you may be watching someone change. If the honest answer to the third is "nothing, but they said they would", you are looking at hope, not evidence.

In my method, this is the last stage: Decide. Not deciding for them. Deciding what you do with what you can see.

Master your attachment, you master your relationships.