Guess you have been lots luckier than the folks I rode with!()relics said:shoes=slippery....barefooted=no slip...at least on blacktop...Don't be scared...goodhors said:I would NEVER recommend going at any speed on hard surfaces without some kind of traction devices on shoes!! Having seen excited horses slip and fall, dancing about or going faster than a walk, pavement is NOT the best surface for quick gaits with your horse. Road Rash on both horses and people, from sliding along, or even just landing on hard surface, takes a while to clear up. Wounds are VERY painful, both before and after picking out the dirt and stones..
Slipping happened to both barefoot and shod horses without traction on their shoes, on blacktop. Traction is carbide on shoes, small road studs tapped into shoes. Now studded hoof boots are available too.
Walking on hard surfaces, blacktop or cement finishes is safest. Never could understand why folks wanted to pound down the paved road after seeing those fallen horses and riders, some runaways that also fell. Real hard to do First Aid when you are not carrying any supplies!
You can ride any speed you like on pavement, but not something you want to advise others to do. Are you wearing a helmet? We had to go to the nearest house for an ambulance call on one wreck, head wound among others. I figure if horse is 'slippy' then that surface is not a good place to add any speed. Your choice how you ride. Does keep your guardian angels busy!