As an initial response to @soloyo215 query, this is a LOT. I'm the first to leap to providers' defense, but this and the rest of your response read as entitled and out of touch. Nearly every person who has a customer-facing job - especially one where you're a solo practitioner (hairdressers, make-up artists, realtors, salespeople) deals with some unserious inquiries. If I'm looking to rent an apartment or book a massage, I may reach out to a few providers to see who fits my schedule and budget. That is not wasting your time. That is an initial inquiry to see if it's worth moving ahead.
Now, I rarely reach out to a provider looking for an appointment on the same day. I'm generally planning several days, sometimes a couple of weeks in advance. And often providers don't want to commit that far in advance. I'm also not masturbating to their pics at any point. As someone who also texts people and fields inquiries at times, I also have standard replies. It would take me under 20 seconds to copy a standard reply from my Notes app to iMessage. So, if you receive five inquiries in a day, you're spending 2-3 minutes total replying to those initial texts. That's not a lot of time to vet clients when you're charging $400 to $500/hour.