Because you have the wrong information.
Climate change is provoking climate instabilities. Yes, the sea will rise, and it will affect some estuaries, but not enough to go far inland. However, the instabilities also mean less rain in some places, and flooding in others. It makes the climate less stable.
So, climate change will make some places become dry and unable to grow food. Maybe not year round, but if a crop is planted in the spring, and the summers now have a few scorching heat waves every year, it will make them fail.
It’s fascinating to see the reactions of people, but I’m just stating what I think.
I’m neurodivergent and was bullied for most of the time I went to school. If I was not being bullied, I either found it too interesting, or very boring. Plus, being unpopular, I was always picked last in gym class, so at some point I started not going to those classes, and eventually dropped out of school entirely. I really felt like it was a prison where parents dump their kids while they are busy earning slave wages. And from what I hear from my nephew and friends working in schools, I’m just glad I don’t have a child that also has to deal with this.
The whole concept of schools with classes of ~30ish kids with an overworked teacher trying to follow a standardized program that will not work for all kids, is… depressing.