If we had budgets that allowed for one teacher per ten students, I imagine many problems in education would already be solved.
Budgets are a region-specific thing.
In the USA there are approximately 50 million students aged 5-18. If you paid for each student to get 1:1 attention one day a week, you would need one teacher per five students in schools that meet five days a week. Let's use that number because it reduces 50 million students nicely to 10 million teachers. Let's pay each teacher $70K/year. That would cost $700 billion per year.
The USA military spent $100 billion per year in Afghanistan.
If the USA provided the 1:1 attention only in 1st Grade and 3rd Grade, they could fund it with the same commitment they made in Afghanistan with a lot fewer deaths. The USA persisted in Afghanistan for 20 years. Shall we experiment with education for 10 years and see if we get a better result than we did in Afghanistan?
There is no correlation between better educational outcomes and higher teacher pay. Washington has the highest teacher pay and the smallest classrooms yet is below average in educational outcomes. Stop this canard, it just isn't true. US Schools have plenty of money, they just don't spend it wisely. In fact, both Mississippi and Louisiana have better outcomes than Washington state despite the fact they have half the spend per student.