Even on a brand new engine?
Look at this way, motor manufacturers have nothing to gain not stipulating earlier services, in fact they and the dealers lose out. If they knew there was a risk of engine damage you can bet your life they would saying more frequent services were necessary.
No harm done if you want to change more frequently and OK - if extreme driving conditions prevailed then a good idea, but given the OP is running-in his car by the book in good old Blighty then I think it would be money wasted quite honestly.