souledgar

Is theft a huge concern with electronics in the cabin?

Policies differ by region as do cruise contracts.  
In the US often the primary person has to remain but additional passengers can change names without fees.  That may mean assigning another person as the "lead" guest then changing a name as a work around.
I can't speak for Singapore.  US policies won't apply there.  

Pretty much.  As an example, let's say they start allowing check-in at 10:30AM and they start boarding at 11AM.  Everyone that checked in before 11 would board in their priority order and that will probably only take a few minutes, let's say 15.  Thus anyone checking in after 11:15AM would just go straight to the ship.  Of course, the line to check in will also be growing through all of this.  There are dedicated check in lines for suites and for the different levels of Crown and Anchor (depending on the size of the port).  Ironically, sometimes the pre-gold line will be shorter than the Diamond and up lines!

Have you checked with the passport office if the sole custody papers and father's attendance for passport papers requirements are still valid if the kid's birth certificates don't list their father? It seems to me that in this situation, as far as the law and paper trail goes, the kids don't have a father in the system, and so sole custody shouldn't be an issue. Sole custody papers are for when the kids had two parents listed, and the paper states clearly that only one and which one is the legal guardian.

Its not surprising the customer service personnel have to keep putting you on hold in this situation, its a convoluted set of issues and I doubt this comes up often for them, so she probably had to check. Don't be afraid to call them back if you're not 100% sure. Quote the Birth Cert FAQ back at them, then tell them you're listed on the certificate. You're paying for the trip, so its part of their job to make sure they can give you what you are paying for.

Right, what I meant was just that she shouldn't be afraid to call again to ascertain or confirm information that she is unsure about. Alot of people I know don't want to, in their minds, inconvenience or cause trouble for companies, and end up not getting the information they need to proceed and get blindsided. RCL of course can't get you on the ship if you don't have the documentation, but they can tell you what they need you to prepare so you have a smooth check-in.