My opinion, as a 16 year old Junior.
If you were popular at school, people might find it refreshing to see you alone for once and independent. If you're not very popular, perhaps somewhere in the middle, people will consider you a loner.
My opinion, what i believe.
If you want to go out and eat by yourself, go ahead. People, especially teens, are too dependent, almost to the point that it pisses me off.
I hear these lines so often:
"Come with me to the bathroom, I don't wnat to go alone."
"Come with me to the cafeteria, I don't want to be a loner."
"What are you doing in the library alone? You're such a loner/loser."
"Come with me to my locker, I don't want to go alone."
HOLY ****...I wonder if some of these people could ever do anything by themselves. People are too ****ing concerned about their social status.
SOME, not all, but MOST
Popular people are too afraid of being loners.
Unpopular people are afraid of being themselves because of what people would say or judge.
It's liberating sometimes to go out alone. There was this one time, my parents had been gone on a trip for 4 days and my sister was at her college far away. It was the night my parents were coming back, and i just finished 4 nights of partying, couple all-nighters. So i decided to go to this small mainly takeout restaurant and got a dinner plate, burger, and some fries. Then, i walked the long way home so i could look around and enjoy the town. Certainly a great experience.
Precaution: Don't go out alone too much, you'll develop a very bad mindset. (Possibly egotistic,egocentric,narcissistic,etc.) Don't not go out alone because of you want to protect your social image.
Life is short. Once you're an adult, you'll have more responsibilities and less time to do things alone. Wife will always want your attention. Children will Require it.
Honestly though, when you want more time in a small group setting. Perhpas you would enjoy it better if you went out alone with one friend. Usually, i go with my wingman to nearby malls/restaurants. so anyways, if you want to go out alone, do it. Just not too much/litte.