Country/ Western things to do in SD for all ages

Hello y'all! I'm trying to convince my wife's sister to move out to SD with us but she is nervous about being homesick from Texas. She lived around Houston specifically. What activities do you guys recommend that would help her feel less homesick? She is also 18, so we unfortunately couldn't do just bars, as I know many have line dancing. We live in La Mesa, so anything also around that area would be great to look into as well. Thank you!!