Say that someone asks for an individual's opinion on topic X. The individual does not personally feel that they understand the topic sufficiently to make a valid decision, due to lack of knowledge about nuances of the decision. I'm looking for a phrase to concisely express a lack of opinion on the topic due to a recognition that the individual does not yet feel they understand the topic sufficiently to have made a reasoned decision.
I am not referring to situation where sufficient information does not exist for anyone to make an informed decision. I'm referring more to situations where information does exist, and given some time he, the individual, could understand that knowledge, but at that moment they do not feel they have a sufficient grasp of that information personally.
For instance, if someone is asked if they support a new law, where the details of the law are readily available to be read, but the individual has not yet, or may never, read the law sufficiently to understand the nuance of the law in order to determine rather they agree with it
I'm looking to avoid a phrase like "reserve judgement" because this implies an intention to learn about the topic sufficiently to make a judgement later. I'd like a phrase that could likewise imply "I lack knowledge to make a decision now, and am not inclined to commit the effort to gain that knowledge in the future, so I choose to abstain from the discussion and not attempt to draw a conclusion".
A phrase that allows one to express a tentative opinion while also acknowledging a lack of commitment to the opinion due to similar lack of knowledge as above would also be nice, but I'm mostly looking for the former.