I agree with Barjon and Socrates. Also good to see you posting again Socrates.
A loose stop is a tacit admission that one's entry may be poor.
Tight stops encourage one patiently to seek optimal entries and are cheaper than loose ones during the learning process, when finding them can prove elusive.
A tight stop allows the trader to be wrong several times yet when the expected big move is finally nailed these losses prove small in comparison.
I don't understand the concept of "breathing room". If the entry is good then breathing room is not required; if it isn't then get out and wait for another.
Tight stops demand more work and screen time from the trader, but the reward is commensurately greater, as it should be. They also take one out of the market quickly and cleanly, thus allowing for more objective judgement and seeking of fresh opportunity than may be available to someone stuck in a loose stop losing trade.
Tight stops allow the trading of greater size for the same risk as a smaller pozzie with a looser stop. This helps P/L enormously when entries become sharper.
Of course loose and tight are subjective definitions and a scalper doing 4000 turns a day is likely to use a tighter stop than, say, someone investing in the dogs of the Dow once a year, but imho learning traders of all timeframes are apt to seek false comfort in a looser stop than is prudent or logical. This observer certainly did.