Will my passport be sufficient if the ask me for ID or should I carry my drivers license with me?
Are you looking to rent a car? Or are you talking about just being out and about?
I'm not going to be driving a car but incase someone might want to see ID for some reason.
Your passport has your picture, name, signature, and confirms your nationality. That’ll be all the I.D. documentation, you’ll need, maybe more than enough.
No need to carry ID in UK unlike some other countries
Using a Drivers License as official ID is pretty much a US thing.
Your official ID outside the U.S. is your passport. They only care about your drivers license if you are driving a car.