Standardized. Yes.
Scheduled by the national party, not by the state organizations. Yes.
All on the same day. No way.
That last would lead to excluding anyone without a massive bank account. It is actually a good thing that the primaries are spread out over a longer period. Early contests in places like Iowa demonstrate the ability to organize and campaign -- they serve as good weeding out processes the thin the field to serious contenders. They also don't require having to raise huge amounts of money to even play the game; winning early can lead to funding to compete the rest of the way.
But the process does need fixing. Non-Republicans should not be selecting the Republican nominee. Period. The party should rotate which states get the early primaries to assure more representative and balanced views, and rewarding states who have done better at expanding or maintaining the party in recent elections over those that have gone more "blue".
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I absolutely agree.