Sorry you had a problem. We love Inks Lake S.P. Yes, Texas lets tent camper occupy RV sites. You pay the money and the site is yours.
We have had to take a less than desirable site because the larger sites we taken by tenters. Texas works on a first come first choice basis and all you are guaranteed is a spot. I have complained to then for years about the system and asking about your rig size. You had better get there early for a decent site if you have a larger rig.
As for misguided kids, take it up with the park ranger and let him talk to the parents. It is a sad commentary on some parents, but we see all too many just turn the kids loose when they unload. As long as the kids are not bothering the parents, they do not worry about them. But alk it takes is one or two like that and it ruins it for everyone,
Sorry to get so negative, but I have the bad experiences with kids like you encountered.
We love to go to Inks in April. The drive between Burnett, Llano and up toward Mason is spectacular with all of the wild flowers.
Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot