Why does micelle formation take place when soap is added to water ? Will a micelle be formed in all types of solvents ? Justify your answer

When soap is added to water, micelle formation takes place, this is because the hydrocarbon chains of soap molecules are hydrophobic while the ionic ends are hydrophilic and hence soluble in water.
Micelle will not form in all types of solvents. It will form in such type of solvent where soap is insoluble in that particular solvent.