It is a norms in KL there is no charges for inspecting tyre condition (with eyes only) response to your question/concern.

However, if labour works are involved say 'to do balancing' on tyres etc, then charges is incurred.

Tell the shop: Boss, ini tayar berapa lama/bulan/tahun lagi bolih pakai ahh? ..... then make your own decision.

Note: On a normal functioning tyre, tyre manufacturers across the world only recommends the replacement of tyres under 2 conditions:
a )tyre wear has touched the Tyre Wear Indicator mark inside the longkang (at a tread depth of 1.6 mm), or
b )tyre manufacturing week/year displayed on its side is 10 years or older.
Hairline cracks/scratches and what not are NOT a basis of tyre replacement, as often understood.

Care to upload pictures on external conditions on tyres?

Looking at the pictures (which unfortunately does not show the Tyre Wear Indicator in the longkang) it appears to me its tread depth is still quite good.

Mind sharing what are the average tread depths at several longkangs as in how many mm deep?

Just speculating the suspension angles may be contributing to the wide spread scarring on the tyre outer edge (of front tyre?) . But don't worry, the tyre is still serviceable.

You may want to get wheel alignment checked and adjusted ..... to slow down the rate of tyre wear, assuming tyre wear has been even between inside and outside edges.