We absolutely should, I think the good foundations do help as I was brought up eating real food, and when I moved out all I wanted to do was eat takeaway all the time (perhaps partly because it was always made out to be a "treat" and mostly because I hate cooking). I did that for maybe a year and then had to accept that the takeaway was gouging a lot out of my limited budget and also I felt crap eating takeaway all the time no matter how yummy it was XD and so went back to eating proper food.
We can only do our best :)
That's right my friend, we must do our best to eat healthier. I have also been one of those who like to buy a lot of food away from home, when I was studying that was what I did frequently. However, now I worry more about myself and my family and we hardly ever do that. Additionally we save money, we can share in the preparation and it's healthier. Greetings!