Compared to 100 years ago roads are already pretty locked down, we have traffic lights and dedicated pedestrian crossings. And we're fine with it.

Realistically, speed limits will probably stay low (or might even decrease) in any residential area you'd want to play in. Additional barriers will be put up where parks / schools are located on busy streets. Only arterial roads will see an increase in speed limits.

All of this is decades away, more than enough time to accept the new reality as the norm.