Besides $1 means you need to give them your credit card from day one. That's probably the only reason they have that minimum limit to begin with.
You don't need a credit card on file, you can prepay and use that balance instead.
I'll also say that I've used around 140 gigs of bandwidth the last two months and my costs has only been <$2. Worth it to me, and doubly worth it to avoid the tyranny of big tech (which includes cloudflare).
KYC is a thing in Europe. Internet infrastructure businesses won't do business anonymously as they'd be held liable for anything their anonymous customer did.