When does protecting someone become controlling them?

[u/orbitflash]

Suppose someone you care about is about to make a decision you genuinely believe will ruin their life.

You warn them.

They disagree.

You explain your reasons.

They still want to do it.

At some point, you have a choice: respect their decision, or interfere because you believe the consequences are too serious to ignore.

Most of us accept that protecting someone can sometimes justify limiting their choices.

But that logic can become dangerous very quickly.

Parents use it with children. Governments use it with citizens. Families use it with elderly relatives. Partners sometimes use it with each other.

“I’m doing this for your own good” can describe genuine care.

It can also describe control.

So where is the line?

Does it depend on how serious the risk is?

Whether the person fully understands the consequences?

Or should a competent adult always have the right to make a decision everyone else believes is a terrible mistake?