is the absence of marriage life in the priest life. Now imagine you bring one person and put him in jail or closed room for ever, this person is only allowed to eat good food and use the toilet only, this person will become crazey and might suicide or do bad things when he/she see other person.

Human Can not live without freedome.
Freedome without limits brings chaos.
Chaos destroys comunities.
Respecting others freedome is our right towards them.