I'm not sure I follow your response Dick. The option of IFR pickup exists. The fact of the matter is that it is rarely needed, in the occasions that there is a conflict preventing a clearance, it is common for ATC to provide another option to ensure segregation such as a radial and in the very rare instances where it is used, the passive party wants out of it. Separation standards exist for a reason. Most everyone buys into them and this issue you appear to be trying to highlight is so rare in occuring that it's a non issue.