If you know, you know. Growing up without a lot of money is a pretty specific experience. Obviously, the degree to which you experienced financial woe is a sliding scale. No one person's experience is the same as the next. The main things that I remember, at least from childhood, are things like utilizing the free lunch program at school, receiving ridicule for what I was dressed in, never taking a vacation, living off the least expensive food possible, and having the not-so-quality house that my friends made fun of. The list goes on and I'm sure it does for a lot of people with a similar experience.
One person posed this very question, "What's a dead giveaway you grew up poor?" to the r/Askreddit subreddit. Of course, a lot of people who related decided to chime in and give their two cents. It's definitely one of the most relatable discussions I've read in a hot minute. Unfortunately, a lot of people grew up without much means, but at the very least we can commiserate about growing up broke.