The upside to training a young sub is you can train then they way you want and they have no experience to look back on and say "My other Dom was not like that or my other Dom made me do this"

I used to work retail and when I hired I would look for those "trainable" and hire those with less experience so I could teach them they was they should be trained for a job, and not have them say "We did not do it that way where I worked before"