Originally Posted by LHolmes:
“Louise looks about 25 and I can't see past Lisa just giving up on her. At least before they wrote in that Lisa had gone through a breakdown. This time round we're expected to believe she just doesn't care, even though we saw Louise on the phone to Lisa lying about being at school in one of Louise's early appearances. So Lisa was obviously concerned about Louise then.”
I don't think Louise looks 25. She doesn't exactly look her age, but age can be hard to pin down.
Looking at the actress, she probably was just as tall at 14/15 as she is now. Majority of young women reach their full height by early teens. People have a tendency to equate height with age. If you are young and tall - you are often assumed to be older and vice versa.
Yes, she seems somewhat too old to be Louise's age right now, but in a year or two it won't really be as bad. If the actress was a few inches shorter, I don't think as many people would be having an issue with her looks - she has a fairly young looking face(big eyes).