I played that mod, there's a note in her inventory (a birthday card) that says she's 18 years old. Very lazy writing, but a lot of Frontier is like that. Anyway she's of legal age (since that apparently matters in a post-war wasteland) and I slap an explosive collar onto her every playthrough.
Pretty sure it said somewhere that she was supposed to be a child and then aged up at the last minute...only for the script to remain the same, showing a mentally stunted "legal age" teenager talking about her smelly feet. Anyone who takes interest in her is a pedophile and she is not of legal age because I refuse to give the frontier pedos any slack, especially the creep who wrote the Crusaders.
On the subject though, I don't think I can bring myself to play Fallout 1 or 2 today. Probably a hot take and also a bit of bias since I've never really been a straight RPG guy I played through Fallout 1 and 2 once or twice at most and I don't think I could do it again. I much prefer the action RPG style of the modern games and using the classic style replacers I can somewhat fool myself into thinking I'm playing a classic fallout with the new gameplay style
I've been playing the first two games as far back as they have still been sold in stores as new, so I definitely have some favoritism, but I genuinely don't see how people can get filtered by these two. The first game even offers you an optional tutorial to explain all the gameplay mechanics, versus the second game that just throws you into a dungeon with a spear no matter what your build and tells you to have fun. F1/F2 are very user friendly and easy to understand compared to other CRPGS, if you're struggling with those two, I think you're not an RPG gamer, period. Fallout 3/4 and even New Vegas are barely RPGs in traditional sense, more like action shooters with RPG elements. NV at least lets you do actual roleplaying, but it's the same Bethesda slop deep down.
You're really missing out, Fallout 2 just hits differently. Here is an example of my last night's session:
I went to the EPA to get a robot part to repair Skynet, a possible companion(not part of the actual game, I modded that in since the original game requires you to kill a robot inside Sierra Army Depot itself and raise an alarm, which is stupid. EPA is a hard to get to location so this rewards those who already have access to it). On the way back to Sierra, I got a special encounter with the huge stone talking head of the Vault Dweller. After we had a little slapfight over if I am really am the Chosen One or not for over 12 hours, the rock gives me a chunk of itself, which acts as a "chem" and raises my STR and AGL by 3 each for an hour. Very situational, but I have a use for it: Right next to Sierra is New Reno, and there is about one thing I haven't done there yet(aside from becoming a Prizefighter since I am not an Unarmed combatant): Become a Porn Star. My AGL is 6, which is apparently too low, my character meets every other requirement. I call upon my ancestors to give me the flexibility I need and give such a stellar performance that I get hired on the spot. This lets me shoot a movie for 500$ every month(pretty much every time I visit the town), presumably while my wife and companions, including my new Skynet robot with Vic's brain watch. If I wanted to, I could even pimp out my wife right there in the porn studio for a couple pennies, but the strain of my very first movie(ie "withdrawal" from the monument chunk, as the game does consider it a Chem) left me with STR of 4 over my original 8, limping in pain to the exit grid so I could leave town and wait it out. I will leave it to the imagination why my character was limping like that.
You will simply not get an experience like this in any 3D Fallout title. With more minimal graphics and more indepth writing and gameplay elements you get more creative scenarios and situations. Without mods, you will also never get a full squad of 5 companions outside of Fallout Tactics, having a full crew feels like meeting old friends with how much they bicker with each other and taunt the enemy in combat. Playing with one or two companions in a 3D title is just not the same.