You get several different types of uniforms - PT uniform, dress uniform, ACU uniform, etc.
Yes all military jobs you have and wear your dog tags
I think it would be okay in a military high school.
The drill team red cord goes on the left shoulder, and the color guard white cord goes on the right shoulder.
The uniform of the Singapore Scout Association strongly resembles that of its American counterpart. As such, name tags go on the left (wearer's right) side of the uniform, over the pocket. For reference, see the related link- a picture of SSA Commissioner Tan Cheng Kiong in full uniform.
Unless you enlist you will not go to AIT for ROTC. The enlisted side and officer sides of the military have different training schools. After ROTC you will go to BOLC (Basic Officer Leaders Course) A and B. A is like the officer Basic and B is like officer AIT.
Military dog tags were first introduced during the American Civil War. At this time the tags were sometimes no more than a piece of paper pinned to a soldier's uniform.
In the US Army ROTC and JROTC, it's three round silver discs.
If you're still within the system (still in uniform) go to any Army/Air National Guard Armory and they almost always are able to make them for you.
the purpose of wearing the uniforms is to increase awareness of civilian military gap. coming from a real military mgs
No
You can go and get your tags renewed. It is illegal to drive with expired tags and you can get pulled over and ticketed.