Advice for elevating my team to be independent/efficient/not need hand holding?

I am the head of CRM at my company with 3 team members. A couple members of my team will want to involve me in every part of their work. I prefer a team dynamic where they do their jobs, keep me involved in the work at a high level, expect my help on bigger projects, red flags, or where they specifically my guidance. I am happy to mentor and guide them but I have no desire to hand hold on all items, or else, I wouldn't need a team.

Example 1: I asked one person who manages the relationship w a vendor to find out about the company's new product release and propose changes/improvements. We've had several meetings about it and instead of her finding out and making recommendations, she will copy me on emails or add me to conference calls so I can ask myself. I tell her I don't need to be in on the meeting, but let me know what they say. Ultimately, I will not get a follow up unless I ask specifically and attend the meeting to hear the answer myself.

Example 2: I asked another member to follow up on a tool we use/learn it from the vendor and make recommendations if they want a different tool. He invites me to the meeting with the vendor, again, I decline, say let me know what you think, I cannot attend. He ended up cancelling bc I wasn't there and now the vendor is waiting on my schedule for when we can all meet. Conversely, this same person will go ahead and do work for business entities, create a series of 10 reports, and not even let me know what's going on or copy me on emails about it.

I have one on one meetings with both, as well as team meetings. I try to build their confidence in their roles and encourage them. How can I encourage the model where I do not have to be involved in every step, just involve me w the high level? Are my expectations wrong? For reference, my title is VP-level, they are analysts and crm administrators with a few years' experience.