seeing where you will be before the first day is a comparatively new idea, as is allowing parents to take their child into the classroom instead of leaving them at the gate. Not saying that they are bad ideas, just that it hasn't "always" been done that way and children and parents seemed not to be damaged by the old system.
While I understand your concerns, the going off with people she doesn't know is also a bit of a problem because she will be doing that. She won't know all the teachers and school staff for instance.