people of 80 years old & more under visit visa clear through immigration, customs check & baggage area without any hassle.

one should only fear only if they have issues with their visa.

regardless of what visa type a passenger hold.

ask your mom to keep her passport, ticket copy (if available) & visa copy ready before she proceed to the immigration area/counter. instruct her on where exactly you live in DOH as the immigration staff may require these information.

i personally know people who clear by them selves before almaha does.

i bet she can clear by her self. dont waste your money, give your mom some quality time with that money which you are planing to spend on this service which you are looking at.