Personally, I think in our world of sensory pleasures and pursuit - it is really no longer about trying to survive or just to stay alive.
We have crossed the line and leapt into the realms of constantly wanting to satisfy our own desires and needs to the point of excesses.
We indulge, fornicate, enjoy excessively and can even become addicted to all the pleasures that samsara provides.
Hence, why not the vow of abstinence? Because it seems very clear that we no longer have self-discipline and strong moral discipline to be exact.
At this day and age, with all the variety of distractions around us, vows of abstinence may be the very thing we need to make us stop and ponder on our own actions and direction in life.
In spiritual terms, if we want to become enlightened as quickly as possible, then we must be willing to cut ourselves off from the very things we are attached to. We must be able to see the wisdom and necessity in abstaining ourselves from the very things that can cause us to go down.
I am all for the vows of abstinence. Because if I do not cut my attachments now, when will be a good time to ever cut them off? The longer I wait is not going to be good for me, nor make things easier for me. And if I do value enlightenment as much as I say I do, I should be happy to cut them off whether I like it or not, and whether I can do well without them or not.
I do believe that there will be a period whereby I will experience terrible withdrawal symptoms. However, to me, its understandable considering how long and deep I have grown attached to the things I am attached to. Hence, I am more determined to cut them off as quickly as possible regardless of how painful the process may be. I know in my heart that it is all worth it.
When we are 'cured' and 'healed' of our ailments, there will be no more pains and sufferings. And that is exactly what I look forward to. Then I can completely focus on helping others and not be distracted by my own "samsaric nonsense".