Eyeglasses are definitely helpful for a lot of people who have eye problems. But even these people will encounter scenes in their life that will make them realize that wearing eyeglasses is actually a bad idea. The examples are actually perfect, such as watching a 3D movie which would require someone wear double glasses and kissing someone that also wears glasses.
This actually proves that not at all times this kind of help is a good idea for everyone. Every once in a while, this puts someone into a tight and shameful situation and the worst part is that one cannot do anything about this because they need their eyeglasses.