Condoms are not 100% guaranteed and so there will be an increase of unwanted pregnancies and spread of sti's/std's. Distributing condoms in school's will also give the student the "okay" to go ahead and have sex. It will also be against their parents' consent and many students religion. I believe that it will increase irresponsible behaviors don't you?
If one is to be given a contraceptive it is likelier that one will have more intercourse and thus irresponsible intercourse. Although promiscuity is generally a result of underlying mental health problems such as trauma it is general principle that when something is easier people do it sooner and more often. Intercourse is more likely to occur in minors or between people with STD's and thus when the protection becomes faulty more complications will occur.
Regardless of access to birth control, there will always be people having sex. We're biologically programmed to want to do it. The only thing access to contraceptives does is reduce the negative effects like pregnancies, STIs, etc. What does cause an irresponsible attitude towards sex is not knowing about its consequences. Proper education on healthy sex is the way to reduce irresponsibility, not restricting access to birth control.
Access to contraception is a prolife act. Using protect allows people control of their bodies without harming an unborn child. This is why I support contraceptive rights. There is nothing wrong with preventing a pregnancy. Random word filler here. Random word filler here gosh darn it. Silly wabbit tricks are for kids.
The amount of sex that we in the west is having isn't as high as it was. I think contraceptives are wrapped up as purely a protection against STI's, which puts a lot of people off as a stigma, rather than something to allow 'lovemaking' without the production of a child.