How can I separate these two columns in this csv file in Linux/Bash?

I am looking to separate these two columns, each into their own separate text files. This data is from a csv file on Kaggle that contains Titanic passenger data. The first column is the number of passengers, and the second column is the age of those passengers I.e. 10 one year olds, 12 two year olds, etc . I want to separate these and put them into a simple graph in the command line.I have used csvkit so far to manipulate the data set. Thanks! I am new to Linux and this is my first dabble into tapping into the community! 10 1 12 2 7 3 10 4 5 5 6 6 4 7 6 8 10 9 4 10