If you do provide nicotine in childproof bottles, you cannot even get your nicotine solution with a syringe because it's like a dropper. Children will have extreme difficulty to get intoxicated with nicotine. Christopher Columbus brought nicotine to Europe in 1492, so it is a product that has been on the market a long time. I don't think there's any substance that has been as well studied as nicotine.
On November 6th, 2014. See this statement in context.