Even Infants can enter the US with their US passport. So there is really no age limit to one who wants to enter as long as they have appropriate documents.
Yes, a 14-year-old requires a passport to travel to Canada.
Yes, a 3-year-old requires a passport to travel to Canada.
not if the 15 year old is travelling within the USA, but as soon as he or she leaves the USA for Mexico, Canada or any part of the world Yes, then a passport is vital some countries will also require a visa before you enter.
Yes.
no
No, a 1-year-old cannot travel internationally without a passport. All travelers, regardless of age, need a valid passport to enter another country.
you can be ten years old
yes just like everywhere else
Not if they're travelling from Northern Ireland, but from anywhere else he/she does.
If the adults need a passport than yes the children will too.As of 2001 All children require a valid passport and supporting identification, such as a birth certificate or citizenship card. Check with the nearest embassy or consulate of each destination country regarding additional entry conditions and documentation (if required), including divorce papers, custody court orders or a death certificate (if one parent is deceased).
It depends on where you are coming from, but in general terms a child of 7 can travel on a parent's passport, so doesn't need one of their own.
Yes.