I play lv34 guardian and becouse of my work I have very odd hours I can play. the last 3 levels I have basically soloed 100%.
I read many sub 20 and low 20 levels whining about not being able to solo exp. It is just one part of our EQ2 life. At that point many classes are not quite developed yet, they look to much a like and there is also some that are more powerfull than others. But do remember there is so much more than just commonsl/antonica or nek/TS. When you get to Zek and EL there is whole lot new things you can solo, quests you solo and so on. It is true that some things you really need a group, like AQ's even thought only thing I needed a group was the 6th part, I had only soloed or teamed with templar before that.
We like to think that the lv we play now is the most important thing but when you get another level or two, you'll notice that all the trouble you had then is gone (ofcourse replaced with another hehe) The game gets harder, much much harder in all levels so also soloing will be dangerous but very much doable. It takes luck and playing skills to venture places like rivervale and come back alive after few hours of exploration. And so remember, not everyone can be dragonslayer, some will always be squires.