I did that this year, primarily because I was told all child sites can be more competitive, particularly if your prac experiences aren't completely focused on kids. They might question whether you have the experience needed to do a full year internship with that population. However, the flip side of that that I've noticed is that I was asked at combined sites whether I could work with adults because I had a number of prac sites focused on kids. So it's sort of a double edged sword. I think you both might wanna apply to both to hedge your bets but also make sure you can answer questions about why you want to work with either age group, what experience you have, and be able to present cases from both age group.