I'm an advocate for teather launching, but only at a permanent fixed point, not a screw anchor, self launch and land is an important skill, however I'll always tether launch and land given the option, IMHO it's the safer option, it allows you to check your gear without the risk, hands up how many people still accessionally rig crossed lines in their haste to get out,also allows you to check if theirs too much pull in the kite, prior to releasing , I put a 120 diam pine pole dug 1 mtr deep with 8 bags of premix around it, even with this it's shifted such is the pull of a kite, and this is why I'm not a lover of anchors, since I've put it in we've vertually had no incidents, prior to that the slsc shed claimed a few kites, however I've seen some stupid acts with tether launch, too long a rope and shackle, so the kite lofted and the rider couldn't reach his bar

also when landed at the tether I've seen people running along lines with their hands and worse still clipping their bloody safety leash on a line and running along, safety first , in most cases of people getting hurt it's at the launch / land stage, even assisted launch can have it's issues, mainly incorrect positioning of kiter, not the launcher as it's not his responsibility, inexperienced assistants are better left to enjoy the beach, asking joe public is a stupid and dangerouse act, it'd be nice to have a season with no fatalities or seriouse injuries but I'm afraid we're a fair way off