You'll always get spam, email for example. You're not required to solve a stupid task before sending it. The recievers mail client can filter basic spam from real mails. Yes, there are false positives and you'll have to look in the spam folder. But you will do it carefully, not get phished that easily and see no sketchy pill ads.
Bots and spam will always exist and training googles AI to detect stop signs won't change that.