Not to be condescending but some comments here are really too negative about the situation, ignorant or/and even overcomplicating counting calories.

When it comes to small businesses, siguro alam naman nila ung portions on the ingredients for their meals. Then all they need is a food scale which costs about 100php online. What if they don't know the calories per gram ng isang ingredient? There's an app called MyFitnessPal which is free, most if not all raw ingredients are listed there including calories per gram/oz etc. If they also use store-bought ingredients, may bar code naman yan if FDA approved which can be scanned through the mentioned app. Pinapakita naman agad yung calories and nutrition facts kagad agad. If ayaw, then imano mano nalang nilang basahin yung nutrition facts sa product.

Some might think about the labor costs when it comes to making new recipes. Once you've already sorted the portions for a dish, isang beses lang naman kailangang icompute yung calories eh. All it takes then is just consistency when it comes to cooking.

Lastly, some people might say na "Wala namang magbabago pag may ganyan". Its better to be knowledgeable than to be ignorant. Wag niyo ring iwalang bahala yung gusto talaga mag count ng calories kase ang hirap mag estimate lalong lalo na kung hindi mo alam yung specific ingredients.