I know what you're saying Raizz. AJo and KQo are a little marginal, and KJo is really a speculative hand, but AQo is definitely a worthy hand for an open for any player and is playable from early position. What's going to happen if you're hesitant and limp is that someone 'wakes up' with A10o behind you and thinks he's got the best hand because you didn't raise.
Just calling preflop is losing money. Let's say hypothetically you and someone else have the same hand: AQ. If you're the one who's limping, and he's the player who's raising, then you call, and both of you miss, he's the one who's taking the pot down, no? You'd have to call him down potentially 3 barrels with ace high just to get your rightful half of the split pot.
Playing AQ and AJ like that is a waste, and turns inherently +EV hands into -EV hands. They rate to be the best hands dealt in the table - if you have AJ, there's an 18% chance that AK or AQ is out there. If you have AQ, there's only a 10% chance that AK is out there. Pocket pairs will often fold on the flop if they don't hit a set. They're the most likely hands to win the pot in a vacuum, and in practice to win without showdown postflop.
I agree about the importance of position, but you'll have sessions where, while not card dead, you're picking up these hands in early position, and only trash like J4 or 10-5 offsuit in late position.
Playing limp, call, fit or fold poker yields a certain EV for that session. Probably negative.
Playing them aggressively yields another EV for that same session. More likely to be positive.
We can't choose which hands we get and which position we're dealt them.
The value in AQ/AJ/KQ is that it doesn't need two pair or trips to continue past the flop, even OOP. But you have to raise and narrow the field to reduce the likelihood you get outflopped by random two pairs. *That's* the purpose of raising preflop - so that you force the rest of the table to hit big in order to continue in the hand.