主题：砖砸懒虫小妹妹 -- 煮酒正熟

Most people do not like to use it.

Even when you use it, there is still a chance of misusing and getting pregenant.

I do not need to mention the reason of getting pregnant is actually the base of all other social, economical and psycological reason on this matter.

But you are right on one point, it is exactly the reason that the advancement of technology made it less a stessful thing for women. That is why nowadays women are more open on this issue than before. But since there is still a chance, the risk is still there, though it is less than before.