Our memories are short and redundant news cycles endless, in addition to everything in our own lives to attend to. Greta and her family lived a fairly comfortable life, from what I understand (and I can have a faulty understanding), but her family loved her enough to make sacrifices to encourage her passion (I believe her mother gave up her career? Please correct me if I am wrong) which fortunately fell on climate justice, which naturally eventually led to social justice, since the poor and disenfranchised have the most to lose, first. This is a very bad rough summary so a few kilos of salt, please.

if we are talking about the media, the media always loves a good story. a young girl with this much determination is a good story.

if we are talking about whether she deserves all the praises she gets that is another topic.

In any case it is good to create such role models for younger generations especially when on the opposite side we have shit faces like Andrew Tate trying to spread misogyny and toxicity to them.

In August 2018, aged 15, Thunberg began skipping school, vowing to remain out of school until after a Swedish election to attempt to influence the outcome. She protested outside the Swedish parliament where she called for stronger action on climate change by holding up a Skolstrejk för klimatet (School Strike for Climate) sign and handing out informational flyers.[7] After the election, Thunberg spoke in front of supporters, telling them to use phones to film her. She then said she would continue school striking for the climate every Friday until Sweden was in compliance with the Paris climate agreement.[8] Thunberg's youth and blunt speaking manner fueled her rise to the status of a global icon.[9]

After Thunberg's first school strike for the climate, other students engaged in similar protests. They united and organized the school strike for climate movement. After Thunberg addressed the 2018 United Nations Climate Change Conference, weekly climate strike protests took place on Fridays around the world. In 2019, coordinated multi-city protests involved over a million students each.[10] To avoid carbon-intensive flying, Thunberg sailed on a carbon-free yacht from England to New York where she addressed the 2019 UN Climate Action Summit.[11] In her speech, Thunberg scolded the world's leaders by exclaiming "How dare you" in reference to their perceived indifference and inaction to the climate crisis. Her admonishment made worldwide headlines.[12]

https://en.m.wikipedia.org/wiki/Greta_Thunberg

You're clearly a troll with nothing better to do than "just ask questions" https://youtu.be/elRxbGJuCw8 but for the benefit of others, click on the Wikipedia link above and read for yourself who Greta is and why she's famous.

When she first got into activism she was a 16yo child of privilege and mistakenly believed the influential people who organized annual climate conferences actually wanted change.

The neoliberal media used her passion and desire for change to make themselves look good (greenwashing) by taking advantage of her naïveté, and made her famous as a result. She pretty quickly realized what was happening and was radicalized by the experience. She started giving speeches outside the climate conferences to protestors instead of giving them to wealthy neoliberals inside the climate conferences, which resulted in the neoliberal media joining in on the conservatives' smear campaign against her.

Of course, there's no way to know what is actually happening in her head, but the change in her actions indicates a radical shift in her worldview. She has become a truly radical activist for social justice. Using her fame as leverage does not discredit her in the eyes of anyone who supports her cause. It is strategic and necessary for protecting herself and her comrades from retaliation for their activism.