  The North-South asymmetry in the number density and bulk velocity of stars in
the solar neighborhood provides valuable insights into the formation and
evolution of the Milky Way disk. Our objective is to investigate the wave-like
disk oscillations of mono-age stellar populations in the Solar neighbourhood
using data from Gaia Data Release 3. We have selected a comprehensive sample of
main sequence turn off stars. The ages of these stars can be accurately
determined using isochrone fitting methods. Our findings indicate that the
north-south density and mean vertical velocity asymmetries remain consistent
across all age groups.The uniformity of perturbations across all subsamples
suggests that all populations are responding to the same external influence,
which likely affects them irrespective of their age. Moreover, the fact that
these perturbations appear consistently implies they could be either ongoing or
recent. Regarding vertical velocity dispersions, we observe that older stars
exhibit larger dispersions.
