Wings folded, please take this reply in the good natured way it is intended, but you have obviously no understanding of SOP's, as you yourself imply.
They cover far more than simply the technical side of things. In fact they tend to be more about how we operate together as human beings, to cut out misunderstood communication for example. What words do we use to describe certain actions for example? Is it 'gear up', retract gear' or 'undercarriage up'? Do we 'set thrust' on take off? Or do we 'set take off thrust'? Or would 'take off thrust' be better?
Who's responsible for what checks and when? When do we do them? Who calls them? Who responds to them? Do we use the checklist as we do them? Do we do them first and then use the checklist? Do we do them from memory as we do this and then check?
Who calls passing altitudes? PF or PNF? Does this change if the autopliot's engaged?
When we come onto stand, what if there's equipment over the white lines but we know we'll miss it? What if we continue onto stand but hit something we didn't see?
How and when should we brief the cabin crew in an emergency? Should we use a standard system or would any old chit chat do? How do we call them to the flight deck? PA? Chimes? What if the PA isn't working?
When's it safe for one pilot to leave the flightdeck in flight? Should we have a sterile cockpit below 10000'? If we do, should we disregard it if we think we're good enough?
etc etc etc.........
Or how about you let every Captain on every flight with every different F/O use his judgement and decide how he's going to do all these things?
I'm only scratching the surface but I hope you get the picture.