There are numerous reasons.
A big one is time. I like having time to just relax. College deletes lots of time and I’m not really all that interested in my degree. In fact, I’m not really interested in any of the degrees. I know I’d be happier being a mailman or a tradesman. I only need enough money to support one person because I don’t feel called to marriage. I do, however, feel called to be kind to everyone I meet.
Another reason is that I hate having to tell my parents everything. I find telling them about things to be very difficult and embarrassing. It doesn’t really matter what it is. It’s even kind of embarrassing telling them about buying small things, like gloves or lotto tickets. Why? I don’t really know.
Spiritual direction would be useful not only for sins, but to know whether I am called to be a priest or a lay single. I am very sure I am not called to be a religious because I like being out and about and talking to people everywhere. I also don’t like praying in the traditional sense very much: I much prefer contemplating God’s creation. I know I’m not called to marriage because I am a very set in my ways kind of person and I know that both me and my theoretical wife would be very miserable being married to each other. Also, I wouldn’t want to have to make compromises in my personal life with somebody all the time. I also don’t want to be married or be a religious. That’s why I almost 99% sure that God is calling me either to bringing cheer and kindness to people as a lay single or a priest. In fact, if there was a job where kindness is what you do then I would love that job.