Perfect understanding can not be achieved yes also defining what is ideal consent is hard and arbitrary, that shouldn't mean we abandon any hope of improving current state of consent which is not effective.

To improve informed consent say for trading[1], a basic training course required by SEC on risks and options would go long way for a lot of people to understand how derivatives work before allowing them to open account in Robinhood style apps, this could be even be extended for crypto and NFTs. It could be limits based rather than hard blocks. Schools could include such material to educate kids.

Speculating and losing money in today's gamified simple UX apps like Robinhood is attracting a ton of people who cannot afford to loose their money and don't really understand the basics of the market, it wasn't a problem when you had to go through a broker who would advise you a bit or use high end Bloomberg terminal . The next market correction/crash is going to be very painful for many people who cannot afford to loose that money.

[1] I don't know what would work for Porn, trading is lot easier to solve.