Car seats in shopping carts.

So I've been shopping for car seats and have noticed on several reviews that people hated the seat strictly because it did not fit in a shopping cart. So in case you were unaware of this, CAR SEATS ARE NOT MENT TO SIT ON THE TOP OF A SHOPPING CART! It is extremely dangerous, they are not made to sit up there and they do not "click" onto the cart, that click is for the car seat base that happens to be close to the same size. Baby can easily flip into the basket of the car and be injured! I know that shopping is difficult with baby in the basket but that is the safest place for them. I just want all your babies to be safe!