Andromeda Greater RPG Feel

He can't in ME2 as well. Difference being you don't have to carry a weapon you can't use. Moreover, class aside, Shepard should be able to use any weapons, that's why I believe ME3 take on it is the best. 



Expect that most of those skill points would be wasted. Most points you use to increase health and damage would be 1% increments or something as meaningless as that. So instead of unlocking one skill that gives you a meaningful 10% increase in health, what ME1 does is ask you to spend 10 skill points in 10 skills that will give you 1% increased health each.

What you just talked about is 100% in ME2 as well. Do you want to increase your health? Sure, there is the skill to do just that, which also will increase damage for your shotgun. In the end, you might want to choose between more damage or more health. Not to mention, you have powers like Biotic Charge that would make your Vanguard totally different from a soldier with a shotgun. 

But turns out you prefer to use the pistol for a battle? You can! You won't feel like Shepard is a child with a gun just because you dindn't spend several skill points in a skill tree. ME is not a turn based RPG or even action-ish RPG like KoTOR or Baldur's Gate, but a shooter. ME1 was that as well, it just sucked at it. 




And what does it mean, really? Your weapon has a cool green effect to it, that's about it. Weapon mods in ME1 are very much inconsequential. Now compare a Vanguard with incendiary ammo or freeze ammo. Two very different ways to tackle a battle. That kind of meaningful difference is nowhere in ME1. You can only imagine it there. (and sometimes the stats they change are noticiable).






You can do that in ME2 and ME3 as well. 

It's not about P/R choices being labeled right or wrong. It's because they it's believed Paragon choices often had the better outcome, as if Bioware wanted to imply that they were the right ones to pick.

You can't blame the skill tree because you tried to use a gun the game told you that you weren't allowed to use.

You do that entirely on your own.

In most cases you actually have to go out of your way to find or buy one worth using anyway and then head through a confusing inventory system to do that first.