According to the Bureau of Labor Statistics, in 2022, the median income in the US was $54,132/yr [1] and the US Census Bureau says median household income was $70,784/yr [2].
I'm not opposed to teachers making $60k/yr, but I think setting this as a floor at a federal level for what is one of the most common professions in the US [3] will have significant and serious unintended consequences. There is a massive amount of territory in the US, where people reside, and are entitled to a public education, that are not major cities with significant tax income. These places don't have the necessary population and tax base to pay this type of salary for a teacher.
Let's take a look at one such state, Missouri, basically smack in the middle of the country. It has two major cities (Kansas City and St Louis) and a significant number of rural communities. The average salary for a teacher in Missouri is $51557/yr [4] but falls to around $40k/yr in rural areas like Marceline and Fredericktown, while being nearly $60k/yr in major cities like KC and STL. If you compare this to another common public profession, police officers, you see a similar story [5] with average pay around $58k/yr, but falling to less than 40k/yr starting for communities like Fredericktown [6] and Marceline [7].
How are small communities supposed to pay teachers $60k/yr? The reality is that politicians and pundits on the coasts never give a thought in their mind to "flyover country" or how rural and urban economics differ in the US. Instead, we try to manipulate the economy at the federal level, not giving any credence to the fact the United States is geographically massive with exceedingly varied local and regional economies and cultures.
[1]: https://www.bls.gov/news.release/pdf/wkyeng.pdf
[2]: https://www.census.gov/library/publications/2022/demo/p60-27...
[3]: https://www.weareteachers.com/how-many-teachers-are-in-the-u...
[4]: https://missouri.teach.org/salary-benefits-missouri
[5]: https://www.salary.com/research/salary/alternate/police-offi...
[6]: https://www.indeed.com/career/police-officer/salaries/Freder...
[7]: http://marcelinemo.us/home/employment.html