To create an account with your chosen crypto platform, you only need an email address or mobile number. This will usually allow you to deposit cryptocurrency, but not CAD.
If you want to buy Shiba Inu with Canadian dollars, you'll need to pass a Know Your Customer (KYC) check.
This is a standard security procedure for most exchanges in Canada and requires you to upload some photo ID, and in some cases a selfie with today's date.
KYC is usually approved instantly, but in rare cases, you may have to wait a few hours or days.