When you have little to no boundaries, you compromise who you are. You can lose your identity, your freedom, your life, and even the ability to see right from wrong. Since you are the only one over which you have control, healthy boundaries are a necessary part of spiritual growth and self-love.
If the addict or alcoholic in your life is your child, don’t fall into the trap of trying to rescue them as they walk all over you and your life - set boundaries.
If it is another family member that is engulfed in the disease of addiction, do not change yourself to fit their disease.
We must set limits on what is and is not acceptable if we are to one day help them when they are ready. This can be tough, but the alternative is much worse. It can be excruciating to see someone you love, struggle with addiction. As they say, you need to put your own oxygen mask on first, before assisting others. This is why good boundaries are crucial - not just for your own sanity, but for your loved ones too.