Do you mean allocating their points buy? Or do you mean "rolling for stats" as in the system where you roll 6 numbers and allocate those 6 numbers? (Which is where the term "Rolling a character" comes from)
I'm all for being allowed to distribute their abilities ourselves, for the exact reasons you give.
How are you getting 18 Streght at level one? That shouldn't be possible with points buy and the races we have access to? With points buy the highest you should be able to set a stat is 15, and racial traits have a max of 2, so 17 should be max.
