Yes poverty is caused by people not knowing certain strategies, and those strategies are of course known by people who are not poor... come on.
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.
(A common misconception is that by avoiding spending, one can escape poverty, but this is not the case, because poverty is a lack of income.)