Stellar age as a function of guiding radii, similar to left plot of Fig. 3, in [Fe/H] bins similar to Fig. 2. A dashed black line at 2.7 Gyr is also shown. The colours represent the number of stars per bin. A kernel density estimate (KDE) is also overplotted. As the [Fe/H] increases the bimodality in guiding radius appears more clearly. At solar and sub-solar metallicities there are young stars, while for [Fe/H]>0.1 there is a near absence of stars younger than 2.7 Gyr old.