Recommendations for beginner camera?

Short version: - looking for beginner camera in the $100-300 range. - nature/ weather photography - don't mind buying second hand

Long version: My kid asked for a camera a few weeks ago. Realized when they asked that i have always been interested in learning photography. But I'm getting very overwhelmed trying to figure out which camera to buy. Unfortunately I can't afford anything too expensive, but I don't mind buying second hand. Maybe somewhere in the $100-300 range. They will probably take pics of anything random, I am interested in photographing weather and nature. Any recommendations would be greatly appreciated.