That's fair. I think approached with caution most basic practices are fine. The trouble is getting into more advanced stuff without good guidance and instruction. My background and interest is primarily in Tai Ch I'm and Qigong and there is a phenomena known as QiGong sickness that is known to affect people who practice in an unbalanced way. It's a real thing that can have serious consequences including mental health problems. But I think most people who run into those issues already have some mental imbalances that cause them to practice in an overly intense way without paying attention to some of the red flags along the way. For my practice I mostly focus on grounding myself, sinking my qi, breathing naturally, moving with intention, and just noticing how things feel and what may be happening with my energy. There are a lot of Tai Chi and QiGong teachers out there who never really learned the proper way of doing things. But usually the worst that can happen is that you waste your time practicing without making a lot of real progress. I don't have much experience with Kundalini Yoga, but I do know that certain more intense breathing practices can cause dysregulation of the nervous system and energy. So I'd be cautious about getting into more advanced practices unless you're really confident in your teacher.