I grew up with my mom HATING my lessons, the time it took, etc, telling me if I didn't ride she could have........you name it. She drove me to the barn, but also never watched. Acted like she would rather have bamboo driven under he fingernails. And, I have a husband whose mom never watched him in any of his sports ever. Some moms can't stand the thought of their kid getting hurt, I guess, so they won't watch. Some are just selfish and self absorbed. Too bad, and certainly their loss.
To this day, my mom is nearly 90......she STILL thinks they are a waste, and reminds me at every opportunity. LOL. She cannot believe I have a wonderful husband who totally supports my "addiction", and even enabled me to get our daughter into it also! I tried with the boys, but they preferred mountain bikes on the trails with my daughter and I, and then cars. HAHA!
If you love horses you will eventually get one. Until then, hone all your skills and enjoy every lesson. Be a sponge, and soak up everything you can.
BTW-both the cars and the horse interest were from my dad-he used to train QH's back in the day, and his voice still echoes in my mind when I screw up riding. Guess his genes were stronger than moms-thank god.