What country do you live in? This has not been true in US or EU for years as Coinbase and Kraken are two excellent options to get in and out. Bitcoin debit cards are a bit of novelty, not some central infrastructure.
Unacceptably poor customer service, significant markup when buying bitcoin, sometimes a week or more delay between purchase and fulfillment, arduous verification process for new customers, being arbitrarily (from the customer's perspective) flagged for a verification even though you already sent them a photo of your passport 3 months prior, banning customers for sending coins to certain addresses, and did I mention unacceptably terrible customer service? Sometimes just never even responding to a customer ever?
I can't say it's not usable... I have bought bitcoin from there and I did receive it, but the experience has been very far from good.
Inconsistent card verification, ID verification is pretty much broken (intentionally or not).