I took my 5 week old tent camping for a week so I'm not one to comment, LOL18 months is fine by me, that's a toddler age to me. I'm talking fresh out of the womb wrinkly little 6 week old babies here.
It's all good to me. They are my kids. If we have something planned, then they are coming. That simple IMO

I hope I'm able to give my children all kinds of experiences from the time they're very small.
I didn't mind toting my baby wherever I went when they were little. It was just my life. And let's be honest, a week at Disney with a baby is better than a week a home with one