Would you micro-invest in your child or family and friends' children via spare change?

I have been working on an initial MVP for an idea that I've had since last year. My app is called Nest Egg.
https://www.nesteggapp.com

The idea came to me when I was thinking how nice it would be to be able to start my hypothetical children (we plan on having children soon) off since birth or at a young age with an investment account made for them. Currently, parents would need to go into a financial advisor's office to set up an account or they would need to set one up online via their brokerage account. The process is time consuming and intimidating.

I know that Acorns and a couple robo-advisors have the ability to create custodial accounts, but I also wanted an easy way for my family and friends to contribute to the account if they ever wanted to. I also don't want to shoehorn a user into an 'all in one' investment suite. The platform will be agnostic and ONLY for custodial accounts.

The goal is to automate contributions by rounding up spare change on purchases or by allowing users to do one-time contributions.

The motivation is to get parents to start an investment account (custodial account) for their child at a young age and something that will outperform normal savings accounts.

From the users I have interviewed, the idea seems like a hit. So I created some mockups of what the app would look like and created a website to "test the waters".

Please leave any constructive feedback for me.
Thank you,