I'm not understanding why if I've bought sats that I can't immediately send sats. 

I want to practice spend and replace. If I can't do that for a bunch of smaller (let's say sub-$100) purchases, then it's really hard to justify using strike as a platform for anything other than efficient DCA. In that regard, it's as good as it can be given the onerous KYC requirements. (I'm not blaming you for those, just to be clear.)  

 how are you buying the bitcoin? if you’re using ACH, it’s likely because we don’t know your account well enough yet and it’s a fraud protection.

every other payment method we offer has instant withdrawals up to any size outside of ACH. if you’d like you can DM me your username and i’m happy to take a look at your limits