"Is there any reasons why you left out Northern Ireland and Scotland?"<quoted text> It may bring lots of whales, but for this discussion, I'll take you to mean "Wales". Is there any reasons why you left out Northern Ireland and Scotland?
In any case, a Royal Decree applies to the entire kingdom. That is: United Kingdom, Canada, Australia, New Zealand, Jamaica, Barbados, the Bahamas, Grenada, Papua New Guinea, the Solomon Islands, Tuvalu, Saint Lucia, Saint Vincent and the Grenadines, Belize, Antigua and Barbuda, Saint Kitts and Nevis, South Africa, Pakistan, and Ceylon.
While some of those countries may have already passed same sex marriage laws, the ones that have not yet passed such laws are now encumbered by royal decree.
I can't see a monarch writing a decree that only applies to as small part of their kingdom. It's simply not the way is done. However, I'll be the first to admit that I have not read the decree. Maybe it's time someone posts a link to the decree.
Scotland has gained a great deal of independence and will have to pass their own marriage laws.
Late last month a copy of Scotland's proposed marriage equality bill was published.
If things go according to schedule, the bill will reach Royal Assent in early 2014 with the first marriages taking place in 2015.
Scottish Government - Same sex marriage (27/06/2013)
Health Secretary Alex Neil said:
"This is a historic moment for Scotland and for equal rights in our country.
"We are striving to create a Scotland that is fairer and more tolerant, where everyone is treated equally. That is why we believe that same sex couples should be allowed to marry.
"A marriage is about love, not gender. And that is the guiding principle at the heart of this bill.
"At the same time, we also want to protect freedom of speech and religion, and that’s what the Bill sets out to do. That is why it will be up to the religious body or individual celebrant to decide if they want to perform same sex marriages and there will be no obligation to opt in."
Marriage and Civil Partnership (Scotland) Bill