Outlets that work only part of the time

First I would go with warm white lights not the cool white, I think it makes a softer look to the bedroom.

In terms of the switching, yes a push button switch would work fine, you just have to make sure that the switch is within spec for the lights used. I have rather opted for a dimmable solution with my childrens beds. since they like to have some light at night. a good option here is this:

Its rated up to 8 amps, so if you look at the strip in your post, it consumes 2.5amps per 5m section used. (provided that you buy a transformer that can supply up to the required amps (ie 2.5amps per meter) -- you can buy a smaller amp transformer, but the lights will not be optimally bright at the highest level.

Your switches are only rated 3 amps, which means you can run about 5 meters of your spec LED Strip. -- Also to note, I would go with a stronger LED strip, generally 1 amp per meter is a nice powerful light (then you would only need a meter per child)

Another thing to consider, is the use of the 3color led's whereby you can have a color chooser.. but that may be getting too complicated.

Your series vs parallel question: You must definitely hook up the two lights in parallel, but just accomodate for the increased amps which will be required. The lights will draw the amps needed so you cannot really blow anything (its the volts which will blow the lights)

Finally: I find that the higher power led strips get a little warm, (meaning that the sticky tape sides start to get less effective over time). would be best to stick the strip to a metal surface if you could choose (it would act as a heat sync)

I actually ended up using a Chinese paper lantern to put the led strip in, it looked quite nice.

There is no code that tells you that your bedroom doors need to swing in for a bedroom. But it is usually not a good idea for them to swing out.

• as you mentioned the doors present an obstruction in spaces. In hallways it might even be comical to wind your way around 7 open doors from both sides.
• when you are talking about privacy the doors have swung in because of the hinge side would be protected. For instance if you locked your door and the hinges were out someone could just knock the pegs out of the hinges and release your door.
• and safety wise there is always a chance that someone will open a door on someone else. But not many people stand next to the door in their own room. But people could be passing by where ever and you could hit them. This should be thought about in your case.
• aesthetically speaking you will be showing the hinges on the outside. I know it isn't a huge thing but a small design factor.

I have to say I have finished maybe close to 50 basements now (got to be close) and one of my favorite designs for a smaller basement is simply storage room with the bathroom towards the front and the other side is huge living room with an "extra" room with french doors in the back. Extra room is big enough to house a pool table but could easily be converted into a bedroom (often we have a walk-in closet going from extra room to storage room). We usually have the French doors swing out to the living room. If the living room is small though we swing them in. This is highly dependent on what you feel is going to be next to the French doors on each side of the room. (On really small rooms we use double pocket doors)

Another note: Come to think of it the doors themselves play a big part of inside or outside. If I have some nice doors - especially the wooden vintage french doors we clean up - well these open out. Because we want to showcase the door. If it is some big box generic french door set, we hide them in the room.