Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Explanations on credit cards in Canada
A credit card is a way to borrow money. That's all. Sometimes the loans are very small - $5 - and sometimes they are larger. You can have a credit card with a company (bank or whatever) that you have no other relationship with. They're not a property of a bank account, they are their own thing. The card you describe sounds exactly like a debit card here, and you can treat your Canadian debit card like your French credit card - you pay for things directly from your bank account, assuming the money is in there. In Canada, many small stores take debit but not credit, so do be sure to get a debit card and not only a credit card. Now as to your specific concerns. You aren't going to "forget to make a wire." You're going to get a bill - perhaps a paper one, perhaps an email - and it will say "here is everything you charged on your credit card this month" along with a date, which will be perhaps 21 days from the statement date, not the date you used the card. Pay the entire balance (not just the minimum payment) by that date and you'll pay no interest. The bill date will be a specific date each month (eg the 23rd) so you can set yourself a reminder to check and pay your bill once a month. Building a credit history has value if you want to borrow a larger amount of money to buy a car or a house, or to start a business. Unlike the US, it doesn't really have an impact on things like getting a job. If you use your card for groceries, you use it enough, no worries. In 5 years it is nice to look back and see "never paid late; mostly paid the entire amount each month; never went over limit; never went into collections" and so on. In my experience you can tell they like you because they keep raising your limit without you asking them to. If you want to buy a $2500 item and your credit limit is $1500 you could prepay $1000 onto the credit card and then use it. Or you could tell the vendor you'd rather use your debit card. Or you could pay $1500 on the credit card and then rest with your debit card. Lots of options. In my experience once you get up to that kind of money they'd rather not use a credit card because of the merchant fees they pay.