Another commenter on this thread said that there are already VPN services with Wireguard support and easy-to-use apps. Why not recommend those to friends and family?

The history of most of these is terrible. Many actively log / aggregate and in some cases sell your data - are based in non-US jurisdictions so no recourse. There is going to be a reason cloudflare does better - they are more trusted.

Because I don't trust any random VPN service provider not to spy on my friends and family, the way I trust Cloudflare.

Those are paid and this one is free?

Remember, if you're not the customer, you're the product. These days, even if you're the customer, you may still be part of the product for another kind of customer.

Yes, sure, but it's harder to convince people to pay for something monthly when there's a good (and free) alternative available.

while that is true it can be meaningfully qualified.

On facebook you are the product in the sense that they sell access to your eyes.

On linkedin you are the product in the sense of aiming to the network effect (and also for ads I imagine)

If I am the product on warp in the sense that websites hosted on cloudflare are faster it is not that bad.

(it is your choice to trust them or not, but that truism just says that the profit needs to come somewhere and you should be aware of it)