Never. The "logic" behind that is that there are now two adults living in the same household and they're both presumed to be driving (even if one doesn't have a license or is an invalid and can't drive.) Therefore, there's an increase in driving, an accompanying greater risk of accidents, and a higher chance that the insurance company may have to make a payout.
This website: http://www.kanetix.ca/auto-insurance, is a good website in order to compare auto insurance rates. This way, you are able to compare with different company rates and see which one is better.
Edmonds.com compares popular auto insurance rates.
Maine and Iowa have the lowest auto insurance rates. Washington D.C. has the highest auto insurance rates.
You will find the best auto insurance rates at www.geico.com
The best website to compare auto insurance rates is www.insurance.com
AAA, Geico, and esurance offer affordable rates for auto insurance.
North Dakota has the lowest auto insurance rates in the USA.
Van insurance rates are higher than regular auto insurance rates, this is because of the fact that vans are very large. You can get van rates at Progressive, Geico, and many other auto insurance companies.
The companies that offer affordable auto insurance rates are Tesco Bank, Asda Auto Insurance, and Direct Line Car Insurance. One can also compare rates of insurance from different car insurance companies, in order to get an affordable rates.
Allstate offers low rates on auto insurance. You can also try State Farm insurance.
Geico claims to have the cheapest auto insurance rates. You can get more information about auto insurance rates from Geico at the official Geico website.
To compare auto insurance rates online you can get different quotes by visiting www.autoinsurancequotes.com.