This has been tried many times, it's called "equity crowdfunding".
However, I've yet to find a single equity crowdfunding project which was a success for its backers.
Kickstarter originally allowed only artistic projects, and there were good reasons for that. Suppose you are doing an artistic project, and you go to the bank for a loan. The banker now has to guess: will other people want this product?
But if you go to Kickstarter instead, it's not some expert's belief about what people would want which decides if you get funding or not. It's the people who would want it, directly.
For "equity crowdfunding" project, that advantage goes away. Your would-be backers have to ask themselves not if they like it, but if other people will like it. We're back to guessing each other's preferences.
In fact, they should be very careful about their own preferences: If they like the product, it's easy to overestimate how much others will like it. And if they think they have a chance to get rich, they might convince themselves the product is better than it is - getting people caught in a loop between those two biases is how MLMs scam people.
And "equity crowdfunding" projects have rather leaned into that scammy angle, in my experience.