Proper" TCAS, and associated RAs etc. are not really designed for Circuit type operations... hence why they disable themselves below ~1000R, and in turn need a Rad Alt fitted
The above is not applicable to any current GA (piston type aircraft) system.
GPS is part of the problem, with everybody now flying eyes in following the damn thing - whereas if they actually had to look out for features etc. and navigate, they might notice the odd other aircraft around
Nonsense. GPS frees up one's attention span to look outside.
I instruct on JPs, and it is truly frightning to see someone eyes in at 200K+ "progrmaming" the thing
You should send them on some training, so they can manage their aviation tasks correctly.