I understand that prices in Bangladesh are very low compared to the US and even a fee of $0.1 when you buy a $1 coffee can hurt because why would you pay 10% more if you can use cash and have that one free cup every 10 days but in the US and the EU LN fees are acceptable, but you have to buy in bulk. To buy a single cup you will have to probably pay twice its price but go with friends and pay the bill for the evening and that $2 fee will go unnoticed.
Fee will not be $1 or $2. It depends on input and outputs. For instant confirmation, you may be required to pay higher fee in sometimes.
If LN get accepted overall, the fee wilk be $0.02-$0.03 or so.