CP: 4 yrs old- car seat on plane or not?

groovygrl

Is the poll feature gone? I can't seem to get it to work and I'm on a laptop...

S/o from my question about plane activities for a 4 yr old. I was not even considering having them sit in car seats on the plane b/c it just seemed odd to me for 4 yr old kids and I think they'd want to sit in the regular seat and have a little more movement ability, plus be able to sit on our laps if they want or rest their head on our lap or shoulder, etc... 

Do you/would you have your 4 yr old sit in a car seat on a plane or just check it?