Absolutely not. It sounds funky, but the closest thing to a WoW or EverQuest paladin in LOTRO would be the minstrel. They don't have the heavy armour, but they have shield use, they can parry, block, and evade attacks, and self-heal.
All in all, every class is soloable to an extent. To copypasta from the other new player thread:
I wrote:
I know it's kinda hard to believe, but everything can solo from 1-50 with relative ease. Certain classes do better at soloing various difficulty mobs, though. Basically, the progression is this:
Swarm < Normal < Signature < Elite < Elite Master < Nemesis < Arch-Nemesis
Elites, for the most part, can be done by just about anyone. Not readily, though, except for a few classes. I can take only one on both my hunter and captain, often burning cooldowns if they're rather tough. Minstrels, Guardians, Champions, and Lore-masters tend to be very good at taking down Elites and Elite Masters.
There aren't really any long-term camps. The most bottleneck deal you'll come into contact with is, if you roll a Captain, Hunter, or Minstrel, the need to get Helchgam's Slime from a boss in Carn Dum. Everyone likes them, because they're in demand for three rather nice legendary traits, and they tend to be hideously overpriced on the auction hall.
Aside from that, grinding deeds at a higher level can be somewhat annoying, but nowhere near as time consuming as EverQuest or FFXI are. You can take a character from 1-50, with decent gear, decent trait levels, in probably a month, month and a half casual gaming.