How common is "domestic discipline" and is anyone else here (man or woman) in a domestic discipline relationship?

I have never heard of the term "domestic discipline" before, though closely borders on the same theme as controlling relationships if this is what your question refers to?

Two consenting adults enter into a relationship with some degree of equality unless the couple are in a very unhealthy one that is abusive in some way, then there can be control issues if one or both persons is insecure.

I have been in a relationship in which there was no equality at all and I was quick to get out of it because I had no freedom to make choices of my own in case there were consequences, but now would never be in another relationship in which I had no say or right to do what I wanted.

It is difficult to know just how common these kinds of damaging relationships are out there in the world, but some cultures are far more oppressive than others.  Western cultures celebrate the freedom and independence of the woman for example because she is able to prove herself an asset in the financial world and therefore, equally as invaluable as a man, who has traditionally been viewed as the main bread winner. 

Women have far more legal rights to terminate a relationship that is unhealthy just as men do and since women are becoming more empowered in the workplace, means that she has the upper-hand in all aspects of her life.  Insecure men will not likely be with a woman with such autonomy as they can easily feel intimidated just as some women with powerful men - the balance in all relationships is still a disputed topic but it is generally agreed that equality is the key success to most successful relationships.

At least 1 in 5 People stuck in poverty often lack self worth and so understandably fall into relationships that are controlling in some way (according to psychological reports) because they don't feel that they deserve better or are used to being mistreated and so choose partners who will abuse them in some way and in which control is a form of abuse.  In this instance, we could say that 15% of the population are in controlling relationships if we discount women from ethnic backgrounds where it is customary and legal for men to take control.