I think also it is easy to type son, but daughter, husband, mother in law, etc...are longer words. If I talk about my husband and refer to him as L, no one would know what that meant! It is good to have universal abbreviations, even if they arent always DEAR to us...lol.
I can go to any board and write DH and most will know that is referring to my husband, but if I wrote L, people would be guessing!
thats my take on it
_________________
Dara, mom to my beautiful kids:
J- 8, diagnosed Aspergers and ADHD possible learning disability due to porcessing speed, born with a cleft lip and palate.
M- 5
M-, who would be 6 1/2, my forever angel baby
E- 1 year old!! !