Oh dear, lostdad, you sound a very concerned father which is wonderful and you would be quite right probably, in your case, to fight for your child's legal right to carry your name.
Sadly, in my case, my son's father ran away to thailand last year, taking all our savings, draining our overdraft limit to the tune of ten grand and leaving me with no job, no income, no cash, utterly emotionally poleaxed, and with a small baby to care for.
His family have turned their backs on me and their nephew/grandson from the day it happened.
Everything actually is in my h's favour - the CSA cannot touch him, the bank is pursuing me for the massive overdraft he has left us with, and I am behaving apparently 'illegally' in trying to dissociate myself from this crook.
I am now cleaning for a living (which I enjoy actually as it is clean money unlike his dirty money in his foreign land where he has lied lied and lied some more to get work and sex), and he is enjoying the high life.
I have no address, no number for him, he ignored his son's first birthday and christmas, has not seen him crawl, or start to talk, learn to eat, sit up and love toy cars and chocolate cake.
I am lumbered with my married name - to a man who nearly killed me. I do not want to carry the name. I now call myself by my maiden name and have re-registered my son under my maiden name in as many places as possible. I cannot change his birth certificate, but believe me, I do not want my son to bear this awful family's surname and do not see why he should.
Do you?
Lostdad, there are some terrible, terrible, shit men in the world. I married one of them. But my son is going to be a great little person who respects and honours commitment, relationships, love, himself, the value of hard work and saving for a rainy day, the importance of trust, respect, good friendships, sharing and myriad things his father obviously only pretended to understand.
Also, the surname is bloody ridiculous.
Do not tar all us women with the same brush covered in crap as you have been smeared with. Honestly, I hope that if you met my h in a pub and we were an item, you would take him outside and give him a piece of your mind..or some such.