Chickenlittle,I do not think rollerskates are very practical.One con not carry much of a load and maintain balance.If you have to go overland (leave sidewalk/pavement) you will be walking.A bicycle can go either.In a disaster there may be rubble that will bring a skater to a complete and sudden stop.A pebble is all it takes and its ROADRASH city.

BOATMAN
John