I live in Western Australia.

I don't believe it's really possible in practice to actually die from a spider bite in my area, although we do have spiders here which are considered "deadly" and there's plenty of these around. Our kids are 3 year old twins. They love being outside but have no awareness of friendly vs deadly bugs.

You can buy poison / repellent stuff from the hardware store. Don't mess around with a pressurised can. Get the 3 or 4L bottle of something bifenthrin based. Mix & pour into one of those big pump spray bottle things, you want one with a wand.

Then spray the places around the outside of your house, fences, and garage where spiders would like to be. Do this twice a year. I do it once after the end of the rain season, and again 6 months later.

It's quicker and easier than mowing the lawn, and it avoids having webs everywhere outside, and huntsman-surprise inside.