It takes a little effort on the parents part. You don't have to micromanage just do your due diligence to make sure your kids are safe. You can make a list of "whitelisted" servers your kids can go on or create your own either by buying a realm or setting one up yourself. Then heres the magic part, you fucking pay attention to what your kids are doing, check logs occasionally or monitor the servers themselves a little. You don't just give them a toy or cell phone or laptop and say now go away (at least I hope you don't). Its not a baby sitter its entertainment and you as a parent still have to do your job. A little supervision and some research makes it a completely safe place. I have 3 kids 16, 14, 10 and they all have been playing minecraft safely for a few years now.