The vast majority of teachers don't think the government has done enough by introducing financial education into secondary schools.
From September, compulsory financial education will be added to the national curriculum in all secondary schools, in an effort to help children grasp how to deal with their money.
But ahead of its introduction the Personal Finance Education Group (Pfeg) has found that teachers feel the move it enough to adequately teach children about their finances.
Some 90% don't think the government has done enough despite changes to the curriculum, while more than 83% said that the lessons would be more affective if they were introduced at primary-school level instead.
More than two-thirds of teachers (69%) also said that their pupils are having to take money and financial decisions earlier than they used to, highlighting the importance of getting children up to speed with money matters.
Tracey Bleakley, Pfeg chief executive, said: "Teachers want to see the government go much further on financial education, and so do we. Financial education's new place in secondary schools is a huge leap forward, but without starting at a much earlier age, at primary school level, we are missing out on a huge opportunity to improve financial capability in the UK.
"Our message is simple. Every school - whether primary or secondary, maintained, academy or free school - should be teaching its pupils how to manage money.
"Until we reach this point, we are failing in our responsibility as a society to prepare young people for the challenges they will face throughout their adult lives."
This week, Pfeg will help thousands of schools across the country run money and financial lessons to mark its My Money Week.
Last year, the programme reached around 1.3 million pupils across 4,500 schools.