Regardless of what you think, you hold a position of power over your staff and you must respect that. , or is it just a shared interest in the type of work that you do?
I know I leave a great deal of my personal interests in the parking lot when I arrive to work.
Others already have relationships or established dating lives or do not want to date anyone.
There are many different perspectives and differences in the workplace. Someone people only want to work for your company for money making opportunities only, and will see this as a poor decision.
Otherwise try to tackle the whole not dating your subordinates lifestyle first, to at least look like you don't need to leverage your ownership/managerial position for dating.