Wellconcerned
Knowing when to issue an instruction is as important as issuing the correct instruction. In your view there are only 6 instructions, I suggest you read a copy of MATS.
6 choices hey? "Hmmmm, which one will I use, which instruction will not put an aircraft or another aircraft nearby in danger. Decisions decisions" the ATC ponders......whoops to late as the burning wreckage of two RPT jets rain down on an inner Sydney suburb.
Perhaps an example is in order: Someone throws a rock at you, the rock is flying towards your head, I know that the correct instruction to you is "DUCK". Too bad if I say it a little too late hey????
Obviously you have absolutley no idea of what ATCs do or how they do it. I suggest that you contact your nearest ATC provider and ask if you can visit an ATC facility.
If, as I suspect, you are a child, then you probably wont be allowed in until you grow up.
Regards
Stephen