You don't have to be irrational to not know things.

True, but isn't it irrational to continue operating something you know could cause harm to you when used wrongly, despite not knowing how to use it correctly?

	▲	Barbing 34 minutes ago \| parent [-]
		The hypothetical person we're considering does have an entire life, too. Their rationale may have emerged from careful risk analysis and weighing of opportunity costs.