Stay away from them!
They will try to make you feel weird for not living like them but they want you to live like them just so that they can judge you. Do not judge them but do not join them.
It is easy to start thinking like those that you are around so if the people you are around start doing drugs, start drinking too much, start stealing, start having affairs they will try normalize that behavior. That behavior may be "normal" but it is not right. It is not who I want to be and a lot of those lifestyle choices just invite more problems.
You don't need to turn your back on those people but you also do not need to invite them into your home or into your life.