Life is tricky, no one person lives the same life. Because of this it makes it difficult for people to understand why you do some of the things that you do. At the end of the day, as long as you have your reasoning then that is all that matters.
Throughout your life you change, it is normal and honestly it is expected. You often don't want to be 25 still with the same traits and behaviors you had at 16. You grow, and in the process of self growth and change, you realize that not everyone in your life is beneficial to you and where you are going.
People get extremely offended by this, but I don't quite understand why. Why would someone want to hold you back, or put a negative presence in your life.
Then again, I guess not everyone wants to see themselves as being a negative force in your life. No one wants to think of themselves as bad or harmful, but people can be a good person, and still not be right for you in your life path.
So often people view this as you being in the wrong, or you being hurtful and inconsiderate. But really you're just doing what is best for yourself and your own future. And if people don't understand that then that's on them because at the end of the day you need to focus on bettering yourself and if you don't see someone in the same light that you did before it is perfectly fine and normal to continue on with a lessened relationship.
You know yourself better than anyone else and if you feel like a friendship or even a relationship with family members is proving to be toxic for you and your health than do not feel bad for ending it.