Regional anesthesia for teens. Is that pretty common to do now?

Yes. For surgical procedures, post-operative pain management, and chronic pain treatment.
Yes. The technique is being used in ore patients due to its benefits in pain control and narcotic sparing benefits.
Depends. Communication is the key. If teenager understands and willing to cooperate with anesthesiologist regional anesthesia could be a good choice especially for post op pain. If teenager is anxious and stressed most anesthesiologist will choose other options unless there is serious reason to do regional.
It is an appropriate. Choice for certain procedures provided the patient understands and accepts that they will be awake or sedated only during a regional technique and may have some awareness and memory. Also, the placement of the technique can be challenging to some patients. Otherwise, there often are benefits to a pure regional or combined regional approach.
Depends on situation. For labor and delivery, regional anesthesia (spinal or epidural) is preferred for mothers of all ages. For surgery, regional anesthesia for teens may or may not be suitable. Some teenagers are not mature enough to deal well with injections for regional blocks. Some children and teens become excited with sedation rather than calm, which can be a problem. Talk to the anesthesiologist about options.