Satellites make conjunction avoidance manoeuvres on a regular basis; about 275 Starlink satellites need to move every day. A non-trivial proportion of those would result in a collision otherwise. Satellites orbit at multiple km per second and manoeuvre to adjust orbit much more slowly, so they need advance warning.

Satellite operators obtain much their space situational awareness data directly or indirectly from US govt sources. The fact that collisions are presently infrequent because satellite operators act on that data isn't a particularly good reason to eliminate much of it