Using a custodial solution for absolutely anything is absolutely 100% never ever ever okay. Promoting custodial solutions is about the same amount of dangerous as promoting Philip Morris cigarettes to children. Why do you want to kill children?
Discussion
While I do appreciate your comment, real-world payments on the street expect a confirmation of transfer within a few seconds.
We both know that Monero does NOT solve that.
Lightning does solve small payments. For larger transactions above double dollar digits, things like renting a room or buying a car then monero is perfectly suited.