Even though my post complaining about google's billing and incoherent mess got so many upvotes, I'll be the first to say that there is nothing basic about "give me money".
Apart from the fact that what happens to the money when it gets to google (putting it in the right accounts, in the right business, categorizing it, etc), it changes depending on who you're ASKING for money.
1. Getting money from an individual is easy. Here's a credit card page.
2. Getting money from a small business is slightly more complicated. You may already have an existing subscription (google workspaces), just attach to it.
3. As your customers get bigger, it gets more squishy. Then you have enterprise agreements, where it becomes a whole big mess. There are special prices, volume discounts, all that stuff. And then invoice billing.
The point is that yes, we all agree that getting someone to plop down a credit card is easy. Which is why Anthropic and OpenAI (who didn't have 20 years of enterprise billing bloat) were able to start with the simplest use case and work their way slowly up.
But I AM sensitive to how hard this is for companies as large and varied as Google or MS. Remember the famous Bill Gates email where even he couldn't figure out how to download something from Microsoft's website.
It's just that they are also LARGE companies, they have the resources to solve these problems, just don't seem to have the strong leadership to bop everyone on the head until they make the billing simple.
And my guess is also that consumers are such a small part of how they're making money (you best believe that these models are probably beautifully integrated into the cloud accounts so you can start paying them from day one).