A benign argument?

The argument goes that if you can access the vast majority of investments on the market via a wrap platform why would an adviser need to use more than one wrap? It is fine in principle but what about the reality? Wrap platforms are not just about accessing whole of market investments, they are also about accessing them via tax wrappers such as ISAs, bonds and SIPPS. So does the argument stack up in terms of advisers being able to offer whole of market advice with solutions provided via only one ISA, bond and SIPP tax wrapper on one wrap platform? Perhaps the answer would be “Yes,” if ISA...