Radial age profiles for the four galaxy populations (thin lines). For the star-forming population we only show 80 randomly drawn galaxies, for clarity. The median for each population is shown in thick unbroken lines. The median for the main progenitors at z = 3 (thick dotted line) and the descendants at z = 1.5 (thick dashed line) are also shown. The data and software to generate this Figure are available on Zenodo:10.5281/zenodo.5093727 (GitHub: https://github.com/pathakde/Pathak_2021).