I can't find anything similar for a PPL, have you?
AMC and GM to Part-FCL: AMC1 FCL.740 (b)(1)
Once the ATO has determined the needs of the applicant, it should develop an individual training programme that should be based on the initial training for the issue of the rating and focus on the aspects where the applicant has shown the greatest needs.
If solo flying is desirable for the applicant, then I do not see why it shouldn't be included. The test is a by-product of what we are doing isn't it?
ifitaint...