In Kolbe’s reaction, instead of phenol, phenoxide ion is treated with carbon dioxide. Why?

In Kolbe’s reaction, instead of phenol, phenoxide ion is treated with carbon dioxide (a weak electrophile) because phenoxide ion is more reactive towards electrophilic aromatic substitution.Due to the resonance effect caused by –OH group, the ortho- and para-positions in the benzene ring becomes electron rich and therefore, activates it towards electrophilic substitution reaction.