It seems to me that you're acting as a fundraising platform: people give you money, you pass it on to startups, and you guarantee these people that they own some equity in the startup.
The concept of "own some equity" is a legal concept, and this is what you have to nail down. Crypto is irrelevant to this conversation.
So the value is Startups will be really easily funded, fast and by anyone, disregarding the regulations and limits for fundraising with conventional money.
Imagine the following situation:
You: "I own 10% of the startup"
Judge: "You have no contract that proves that...."
You: "But I sent crypto instead of money!!"
Judge: "Oh in that case...!"
It's like when the word "crypto" is involved, people immediately surrender any critical thinking :-|