Personal vault vs org

I have lots of clients who are self employed/1 man business, the same applies to me.
So I am not sure if there is any real advantage to giving them an ENTERPRISE ORG, they we don’t need to share anything with anyone else by default.

But this is the only option on the MSP account and many clients just don’t want that additional cost.

If they need to share anything with me, I am thinking they can do this via their personal vault and I can do the same, which is then free or very cheap for them.

In lastpass I have a folder for each client, and I would just share individual items or the whole folder with the client and tell them to put anything they want to share with me in that folder.

My goal here is to get ALL my clients using a password manager, even the ones who don’t want to pay for it.

thoughts?
Please keep it professional.