Did you ever avoid

Yep.

Still do.

I can handle it if it doesn't break.

If I didn't, my Mom would be in a wheelchair.

Manholes and grating...

Yes and still sometimes do

No i didn't

"Did you ever avoid..." writing a full sentence in the topic's title?

Yes

Yes

Yes.
I also used to pretend that the floor was lava.

Somewhat relevant

I think it's a natural stage in child development.

Yea

I usually jump over a few because my strides are big.

We need to have a war based on immigration of children from the country we're fighting. Then we can have the children step on cracks, and disable half the country by making their mothers have broken backs.

Yep :D

Never.