[Question] Why do we refuse to take action claiming our impact would be too small?

I’ve seen this often in problems like climate change or animal exploitation:

“The solution is up to others. The powerful. The governments. The policy makers.”

In this way people frequently delegate their share of responsibility to more powerful or visible entities.

To illustrate with an hypothetical example: If we suddenly found out that mobile phone frequencies destroy the planet, instead of stopping using them, many people would say:

“My actions won’t make any difference. Instead it’s up to the government to ban cell phones. Why should I be the fool that starts sacrificing, while everybody else keeps enjoying cell phones?”

But the only reason the government needs to ban cell phones is that the world is full of irresponsible people who need to be coerced into doing the right thing!

Does this phenomenon have a name? Does anybody here know the underlying psychological mechanism? Is it a genuine blindness about the sea being made up of millions of small droplets? An excuse to avoid responsibility? Something else?