Somewhere @yvecai wrote along the lines of “quite some work to get out the SAC from sac_scale” in foot_scale topic. I cannot find the link.
From my perspective, a homebrew foot_scale has potential far beyond what sac_scale has. The wording alone makes it a bad fit for most of the world and will forever cause mis-taggings of something decidedly not-hiking according to sac_scale but given value hiking nevertheless, just because there are no mountains around.
Said that, I certainly won’t oppose a proposal to create “sac_scale=strolling”, I’d probably even approve, if it showed consequently what more casual than casual or less than no obstacles means.