It is not like all kids are a burden... some just need a bit of extra 'handling' to get started.... but do not think that there are some out there that would stay at home and do nothing forever...
I have a nephew who was one... he was very smart, but did not care to do any kind of work at all... his mom kicked him out of the house and another sister let him stay.... he was just fine living there eating their food and playing his guitar... he went to college for a semester and got on drugs... sent to a state institution for a couple of years (and did not care)... came out, went into the Navy... met some pregnant woman while on leave in Australia (not his kid)... got kicked out of the Navy, brought the woman over here and then sponged off his parents... parents kicked him out... sponged off another relative, they kicked him out.... sponged off some other relatives.... I think it was three years and he never got a job... finally moved back to Australia and got on the dole over there.... with the Hari Krishnas... on second wife and has 3 kids.... never really has done anything with his life, but from what I hear he is enjoying his life....
I do not talk to him at all.... the last conversation was something like this "Uncle, you must have a lot of money, why not send me some?".... Me "not a chance, have a great life"....
Now, almost all my other nephews and nieces have launched and are doing quite well... some had come back to their home for a few months when things in life changed, but all took the time to look for something and go for it... I had no problem helping out any of these if needed....