Keep in mind that one set of rolls is not always the best determinant
3d6 + 6 average is 3.5, 3.5 = 7 + 6 = 13 with a slightly better odds at something a bit higher I have not had any players roll anything horrible over the top nor horribly low it basically averages out across the characters
Note in saying this I have had probably in the neighborhood of 24 players make those rolls on this forum -- and some have even gotten 8s which means they rolled 3 1s and only a couple of have gotten 18s but again the key is the players get to be heroic and you never need to balance the game against the characters just the characters against other characters --- as you can scale the game however you want
If you feel its too high then just go 2d6+6 drop nothing or maybe 3d4 + 6 as that would keep help curve it up a bit more and then say you can re-roll if your average is not 13 or higher
That said you could do the ole standard of 4d6 drop the lowest -- and if you do not average above 13 you can reroll -- however you will find that tends to be more uneven amongst the players
Last edited December 5, 2020 10:00 pm