Here's a bit of ammunition for you if you have an older sibling...
It turns out the eldest siblings are often the worst drivers, according to research from Privilege Car Insurance in the U.K.
The study looked at 1,395 drivers' habits and it found that the vast majority(89%) of older siblings are more likely to speed.
35% of these, (in the U.K.), received speeding fines as a result.
The research also found that:
30% are more likely to use their phone behind the wheel
17% were found to apply make up while driving
46% were more likely to drive in the middle of the road
47% admitted they have a tendency to cut off drivers
Over a fifth of those surveyed have ended up in minor accidents, while 15% were in more serious collisions.