What if somebody need to keep his PR card to travel to an other country ? do they allow you to keep it with you if you ask for that ?
I will be visiting a country where they require a visa but not for PR holders
You can't keep your PR card after your citizenship, irrespective of what the reason is. Once you are a citizen, you are no longer a Permanent Resident and as a result, you can no longer use (or need) your PR card. You will use your Canadian passport to travel internationally.