Taller vehicles have a higher center of mass and ar thus more prone to tipping over. They are also less fuel efficent and more dangerous to pedestrians in the event of an accident. Them being taller also makes it harder for people using lower riding cars to see by both impairing forward vision or by shining their headlights into the cabin.

I own an accord and I can’t tell you how many times someone in an SUV behind me blinded me at night by making my cabin as bright as the sun.