Friends opinion

Kathryn • Hello everyone, my name is Kathryn and my fiancé and I are trying for baby number 2. We have a 4 year old daughter
So what's your guys thoughts..me and my fiancé are TTC baby number 2 and we are almost 31 our daughter will be 4 this summer. A lot of my friends say oh your kids won't be close and there is to big of age gap..this and that OR we hear you guys are going to be so old when your kids graduated..they all had their kids young to mid 20s. What's your guys opinion,advice or thoughts??