How to create a geom_bar of two tables using ggplot

I have a problem creating a geom_bar two tables using ggplot. I have two tables:

1) 
  characteristic men_weekly_earnings
1     16 to 24 years               493
2     16 to 19 years               392
3     20 to 24 years               507
4     25 to 34 years               755
5     35 to 44 years               964
6     45 to 54 years              1011
7     55 to 64 years              1021
8 65 years and older               942


2)
  characteristic women_weekly_earnings
1     16 to 24 years                 451
2     16 to 19 years                 357
3     20 to 24 years                 468
4     25 to 34 years                 679
5     35 to 44 years                 781
6     45 to 54 years                 780
7     55 to 64 years                 780
8 65 years and older                 740

Each table have data of weekly earnings by a different age. my goal is to combine the two tables into one to be like this.

the x axis is the characteristic column and the y axis is the weekly_earnings column.

For now i tried this code (for the men table, and it's not working

  ggplot(data = men) + geom_col(mapping = aes(x= characteristic,y=  men_weekly_erning))

what can I do now?

Thank you.