Just reasoning through this, I think a beginner should probably begin with a tighter strategy and maybe loosen up or experiment to find their own play-style ONLY after they've gotten a good feel for the game. Pros like Phil Ivey or Tom Dwan can play all sorts of objectively trash hands because they are thinking on many levels, have exceptional hand reading ability and know when to get away from their hand. Even then, pros sometimes get caught in situations they put themselves into.
Here is an example: Say we hold Kh3d and play it. Maybe we called from the Big Blind or maybe we raised aggressively to represent something - doesn't matter for this point. Point is we are in the hand with Kh3d and now the Flop comes:
Ks8c5h
(this flop favors a Big Blind player than a raiser from somewhere like UTG, but this is a different tangent)
Okay cool, we have top pair, but now what? Our 3 kicker is not impressive, but the paired King might give us just enough rope for us to continue and lose a lot. A beginner could easily misplay the hand and lose a ton when a tighter strategy might not even have entered this situation because they would have folded preflop. Even if you do have the best hand, maybe you'll get bluffed off of top pair by Villain showing aggression and us forced to fold.
Similar problem with other situations where we might not realize our
equity. Something like a low pocket pair... say we hold pocket Deuces or "Ducks" as poker slang goes.
We hold 2s2c and the Flop comes 4c4hAd
We have two pair already and might hold the best hand! Problem is that we might get bluffed off of the best hand and especially so if out of position. What could the opponent show aggression with? Any 4 obviously, any Ace gives them two pair, but even any pocket pair has us losing a lot in many cases. Even if they are bluffing with nothing, it is tough for us to call here. This is why many players fold lower pocket pairs from early position or enter Flops to "hit a set" or fold to anything.
I'm not saying to not play K3o or 22 at all - they have their place, but just that a beginner without postflop experience and hand reading ability won't as easily have the discipline to escape a bad situation and can easily bust on a hand they shouldn't have been in. Perhaps one may argue that the experience can only be gained by doing it, but I think you can learn postflop skills and experience with objectively stronger hands too. Is it really so bad for a beginner to fold too much and observe how others winning at the table are playing? This certainly seems better than playing too many hands.
That is just my opinion though - like most beginners, I too played too many hands preflop. I didn't even know what a HUD was, but I probably entered the flop with like 30-40% of hands - in great part because I simply didn't know better.
For players seriously wanting to improve more than have fun, I think learning with a TAG style is much better than a LAG or more complex strategy because the strategy is more simple. Value bet most hands since you are usually ahead with your tighter preflop selection and that is much easier to grasp than tricky or more advanced strategies that might work well too, but take more insight to properly control and not quickly spiral downwards.
Just take my advice lightly, since I'm basically a beginner too though