jeffp - That's fine if you are a man.
You may be aware that a lot of the people stowing shopping and babies in cars outside shops are women.
You are probably not aware that a lot of women's clothes do not have pockets. Clothes designers assume that a woman will have a bag or purse, so they don't bother putting pockets in the clothes (though they often add fake pocket flaps to jackets to make them look more interesting).

Maybe women should make a point of not buying clothes without pockets, and let the manufacturers know why.