Originally Posted by starsailor:
“It was expected by a fair few people that given Capaldi's older, they would introduce a younger male actor for some eye candy, and to take any issues out of the Clara/Doctor relationship..”
That is definitely true.
But I also think his character will give Clara a stronger connection to (modern day) Earth. What little we saw of her family during the Christmas episode was not very exciting, and Clara doesn't seem close to them at all. A friend from work actually seems more likely to have a lasting inpact, and of course the writers can always add a little attraction/tension between the two for the shippers among the fans