Hi
I think nobody misses a put less than 1 ft, unless meeter screws up or something is wrong with the game. What about "giving" those ultra short puts?It would save time when you play with others.
I write 1 ft as an ex. here. You might use another short distance for "giving" short putts to save time.
It's not the rules of golf; it is up to the individual player to decide whether he wants to concede a putt or not, be it 1in or 100ft. If a player does not concede a putt it MUST be holed out.
I know it's not according to the rules, so in a tournament - putt in in the hole.
But when we play for fun, not a tournament, it is quite common to "give" the shortest putts.It saves time for us all.
Under 2ft or even 3ft. Unless it's at Oakmont LOL. There I wouldn't give an inch.