How old is Lucy?
She behaves like someone 25 years old, and people treat her like she's 25 years old, but the actress looks at least 35 years old, and the intended actress was also around 35. Lucy seems too undecided about her life and too undeveloped as a person to be over 35. The confrontations she had with her dad in the film would have already happenned by age 35.
I could believe that she's been living that barfly life for the past 5 years, and finally seeing that she wants out of the dead-end, but I can't believe she's been living that life for the past FIFTEEN YEARS and is just now waking up.
Her story would have been more believable if she had been played by an actress 10 years younger.