Answer
Congress can't make any laws prohibiting freedom of speech, freedom of press, and the right to peacefully assemble or petition the government for a redress of grievances, as well as no laws on religious establishments
Certain flavors of food are not available in Canada because of the harsh climate of the Nation.
Explanation:
Canada possesses a harsh and cold climate where there is hard to grow a lot of food and thus most of it is imported from outside throughout the year as farming in a land like Canada is very hard and not as fruitful as it would be somewhere temperate.
Thus the Canadians have a small variety of homegrown species which do not make up for a very tasty cuisine. Rest everything has to be painstakingly and with hassle imported from outside for the use of the people in Canada.
I believe the answer is: firearms
Currently, form the total of homicide in united states, more than 65% of them are being done by using firearms. From those 65% the overwhelming majority of the victims are the people from lower income tax bracket (usually due to competition in doing criminal activities such as drugs or mafia)
The children might think that the rules are only so adults can have control over them. They might ignore them because of that.