End hosts and systems unlikely to loop can be assigned the edge role so that they don't affect the STP topology and go into forwarding immediately.
That's fine when the network engineer is in full control of the network, but users are pesky creatures.
They plug $20 NetGear switches into single-drop wall jacks to get more ports, and then in their ignorance create a loop the dumb switch is incapable of pruning off locally, creating a loop through the wider LAN.
They take VoIP phones with pass-thru jacks for the PC and helpfully plug both ports in at once.
I get that it takes time for STP to converge, but that's why we have RTSP now. Let it do its job. A second or two per port to work out the new topology is cheap compared to human time chasing loops.