questions on grille. i'm down to 2 types of grille

0.5 and 1 inch grille (hollow inside) vs 6mm grille (full metal)

now, the 0.5-1inch grille most likely is 2 sides wielding, whereby the 6mm grille is full wielding (all 4 sides).

Most of the contractors told me that even 2sides wielding, the 0.5-1inch grille will be harder for the thieves to break it (not cut, more like expand it and break it from the side), compare to the 6mm.

whereby got 1 contractor told me that if the 6mm doing full wielding, then it is harder to break compare to the 0.5-1inch grille.

which one is true?

also, some mentioned that if the grille using car paint, it is more lasting compare to ici. but disadvantage of it is that you will face difficulties when you wanna repaint it many years down the road.

so what do you think?

0.5-1inch grille vs 6mm grille

car paint vs ici paint