15 is NOT max in 5e. That's silly. Read the PHB. It gives multiple - all of which are optional - to create yiur character. In fact, the base way to create your character in 5e is roll 4d6, drop the lowest, do this 6 times, give them to a stat. If you do not want a roll you can 'assign' 15, 14, 13, 12, 10, and7. Heh. But, who'd do that over rolling? The first variant has 15 as max. This is found on page 13 of the PHB. Why make stuff up? Lol
