If you looked 45 in-game that might not be so bad but unfortunately, as with the original, by 45 you look about 60 in Fable Anniversary.
As you max out at 65, this will bring your minimum age, if you max out all stats, to 45.
Unfortunately, this is only a maximum of 20 years. I have created this guide as there is no longer an in-game method of reducing your age beyond the two reductions you can get from the Chapel of Skorm and the Temple of Avo.