➡️ It is wrong if people ONLY take u more seriously if u are older.
It depends. Theoritically, a person should become wiser, more knowledgeable with time. However, we are quite a few to stay full no matter how much time passes, or even to get fooler with years. That makes age a poor predictor to how seriously someone should be taken.
➡️ If u shower every day then u should use neutral shampoo 5 times and scented only 1 or 2 times.
I have no idea what does this mean. To contradict diogenes though, I don't think a daily shower is mandatory. It depends on your environment and activity level. Being in a big city/tropical area and doing sport, or being in a rural part of Norway and sitting all day are two very different contexts.
➡️ Zoos are cruel for animals but also important bc people will take care of nature a lot more if they see animals they must protect.
There is zoo, and there is zoo. You cannot put the Bronx zoo, Prague zoo or Chengdu Research base of giant panda with places like South lake zoo (I don't remember properly, in England), attraction with elephants/tigers parks in Bali/Indonesia/Thailand, or Surabaya zoo for instance.
The first ones are leading huge project in wildlife conservation with succesful reintroduction, breeding programs and keeping species that are extinct in the wild. Bronx zoo is operated by the Wildlife Conservancy society for example, and scientific literature on their activity is huge. Prague zoo participated to the reintroduction of Przewalski's horse in Gobi area.
Chengdu research base of giant panda breeding is important for reproductive biology, captive breeding, potential reintroduction projects and veterinary science. I think there is another such center in Wolong too.
This kind of zoos usually hire ethologists to study animal behaviour and gives the most liveable condition to their specimens; be it by food, entertainment, activity... or simply rest zone not to be under people's gaze all the time. They often are in semi-free enclosure. It's not freedom; but my 2 cents is that you can hardly call that cruel, even though it is not perfect even at the current stage.
On the other side, you have Surabaya zoo or South lake zoo, where animals are in small enclosure with only concrete, undernourrished, and sometimes die because of their poor conditions. Tiger/elephant parks might be even worse (although it depends; again, the one in Xishuangbana, Yunnan, is uncomparable to Bali for instance), where tigers and elephants are sometimes beaten or drugged to be more "kind" to tourists.
To respond shortly to your claim "people will take care of nature a lot more if they see animals they must protect." : The first kind of zoos I mentionned might help for that. It depends on their communication. Seeing animals can make people feel emotionally connected and more sensible to the loss of biodiversity. The staff can perform scientific communication to teach both children and adults about wildlife.
Maybe more importantly, it can also provide money for research... which is an indirect way to support conservation.
