Milestone mini-moan

Why are some people so negative about small children reaching developmental milestones? My daughter started walking on her own recently (later than average at nearly 22 months but not surprising with her medical history) and comments included ‘you wish they’d walk and then once they do, you wish they hadn’t’ and ‘now you’ll need eyes in the back of your head’. Well firstly, not for one minute do I wish my daughter wasn’t walking – actually in some ways life is slightly easier as a result and secondly, I needed eyes in the back of my head once she started crawling!