A Guy Called Tyketto wrote:

No clearance is required.


For Class C airspace, 2-way communication is the clearance into
that airspace. No, ATC doesn't ahve to 'clear' you into it, but the
communication is the clearance as is.

No clearance is required. Do you know what CLEARANCE means?

If ATC tells you to remain outside a certain class airspace,
you must read that back

I don't have to read back anything.

and remain outside that airspace until he
clears you into it

You will not EVER get a VFR clearance into class C or D airspace.

RADAR CONTACT is not required. Altimeter setting is not required.
Readback is not required. You know he hears you because he responded
to your radio call with your call sign. I'm having a hard time
following your argument.
Actually, for Class B, it does. AIM 3-2-3.d.2 and 3-2-3.e back that:

3-2-3.e: ATC Clearances and Separation. An ATC clearance is
required to enter and operate within Class B airspace. VFR
pilots are provided sequencing and separation from other
aircraft while operating within Class B airspace.

What on earth does that passage have to do with anything? Radar
contact is NOT required, Altimeter settings are not required, Readbacks
are not required. A clearance is required.

For Class C, AIM 3-2-4.3 states that 2-way comms must be
established, and that is the clearance into/through Class C. But, if
ATC tells you to remain outside of it, you *MUST* remain outside of it
until told otherwise. Plus, a readback of that would be required.

It says nothing about clearances. You're making things up again.