In the early days when I was using the sling I got some/all of the following...

**he will get spoiled if you keep carrying him like that...
**he is too hot in that thing - take him out...
**can he breath in there?

and the best one from my MIL
**he is out of the womb now he has to get used to it** this before he was even 6 weeks old!!

I have also had the gender issues - I haven't cut his hair yet (he'll be 14 months on Friday) and his hair is getting a tad long and is a touch wavy/curly in the back, but I dress him in obvious boy clothes yet I get people asking me if he is a girl!!

I get LOTS of advice for the sleep issues we have - I just smile and change the subject - I still do a couple of night feeds a night and we co-sleep at least 50% of the night and that is working for us for the time being so we will keep doing it!

I know I will continue to get more advice so I just try to deal with it the best I can...

One last thing... we live with my FIL and I have all sorts of issues with him - but his health is such that I would be very uncomfortable with him living by himself and DS and he have a beautiful relationship and I'm thankful for that as I don't know if FIL will live long enough for DS to be able to remember him.
Having said that... DS demands to be held all the time by FIL and also expects passive entertainment from FIL and I'm going to have to put a stop to both of those. Tonight I casually mentioned that the more he picks him up the more he is encouraging the behaviour. FIL commented that it was okay because he only ask FIL to pick him up - to which I answered that we need to teach him that Grandpa can't always pick him up just because he wants him to. He put him down after I said that so perhaps he will get the picture soon.