Ageism works both ways though doesn't it? How many times have any of us harrumphed, "Young people! So ridiculous" or "Young people! Well they'll learn..." or "Young people have no work ethic". Well some do have a work ethic, some aren't ridiculous and yes, by virtue of their age, young people are still learning just like we did at that age.
Time passes for us all, we all gain experience as it passes and those young folks that we feel are ignoring us, will be ignored in turn by the next crop......the human journey.
We've all done it, gone through it and so will they. If anything, we can satisfy ourselves with the thought that 'they'll find out when their turn comes'.
It's like I used to say to my oldest when she was giving me fits when she was a kid, "One day you'll have a kid just like you and then you'll see it my way!". I was terribly disappointed

layful: when her first child was a mommy's delight. Peaceful, slept easily, sweet, cuddly, cooperative.....but then she had her second and now I tease how the 'mother's curse' always comes through.