You're the only person who keeps trying to turn this into a discussion about you. It's not a matter of what I think of you. I don't think of you. I don't care about your job, your experience, or whether you like long walks on the beach. I'd be happier leaving them out of the discussion.
The argument that emails have never been used as evidence, or accepted as best evidence by a court is wrong. It has no basis in reality. Heck, I can point you in the direction of cases where Tribunals have relied upon Facebook posts as best evidence. The medium of communicating acceptance of a contract is not particularly important in terms of whether the contract is valid.
The suggestion that it is preferable to rely upon the recollection of a verbal contract, rather than use email is bizarre. You are right in that if both parties agree that a contract existed, and regarding what the terms of the contract were, it would not be necessary to lead evidence regarding these points. That does not change best practice though, which is to create a contemporaneous record of the contract, which can be relied upon in future should disagreements arise regarding either the existence, or terms of the contract. Relying upon the recollection of a verbal contract is a major risk for either party, as they leave themselves exposed to having the other party's evidence being preferred in a 'your word v mine' scenario.
Emails are frequently used to create such a record, as it is close to instantaneous, can be easily stored, can be produced at short notice, and can be sent to a number of recipients. The thought that these are not valid, or would be rejected purely because they're emails is baffling. A court would not accept a verbal recollection of what a contract's terms are over a contemporaneous email accepting the terms.
Having said that, I'm not suggesting that an email is the ideal form/method of executing a contract. It would be far preferable to have a document executed by both parties and witnessed, as that strengthens the evidence that can be led with respect to whether the parties agreed.