Hash marks are narrow in the NFL because this enables QB's to make all the throws across the whole field. Nothing to do with making the field goals easier.
A few years back, moving the hashes to NCAA dimensions was on the docket. My concern was the problem this would cause with some fundraisers that ran in rural areas by football boosters....
COW FLAP BINGO :
(1) Via the 5 yard lines and hash marks, the field was divided into 60 equal rectangles;
(2) 60 tickets were sold @ $10/ticket, each ticket would label a rectangle;
(3) A well fed cow would be lead out to midfield;
(4) The cow would be turned loose and allowed to wander the field;
(5) The players would ring the field and "shoo" the cow back if it was to wander off;
(6) The head coach would be the sole judge of whose rectangle the flap was deposited on;
(7) The asst. coaches were responsible for removing the flap-shovels provided;
(8) 50-50 payout - the boosters could use the $300 to buy more trinkets;
(9) The farmer who provided the cow would get a free to the next game.
....it would have been a shame to ruin such a time honored tradition

....
......the change was voted down.....cow flap bingo survives....time for lunch
