The strategies for the first steps out of poverty are different from strategies to rise within the middle class. So they're mostly not known by people who aren't poor.

For example, many government aid programs are (intentionally) obscure. Signing up for food stamps is so complicated, there's a charity that just helps people do it (https://www.mrelief.com). And there are plenty more strategies that help people, like for making cheap nutritious food. Any of these can be taught.