If they ask which wallet can they keep/store Bitcoin, I do correct them that it is 'which wallet can they use for Bitcoin' is the correct. If I was not corrected, I wouldn't know the right answer and I wouldn't be able to correct them, also there is nothing bad to devote 2 to 3 minutes for newbies or your newbie friends to explain this to them so the world will know more about bitcoin, what I have noticed is that they easily understand this part of wallet and blockchain easily, I still consider this as the layman's part of explaining about Bitcoin to someone. And if they want to go more technical, mastering Bitcoin can be gone for.