Agreed . I think when we say “taking someone else’s gift” , the first thing is to determine why they think that gift is their’s . That is what we are talking about here. Those who are well versed with the Pakistani culture, will know lena dena plays a major role in relationships there , to keep it all fair between themselves.
We have seen a varied response even in this thread. So we cant really say who is right or wrong. Also to add , that the money is not for the parents to pay for the meal costs. I will give an example: we have three weddings at different times in our family, Phupo XYZ gave £1000 each time. Now there is a shadi in her family, we need to be fair in gifting her either accordingly or better if we can afford.
Its a bit of a complex gifting system, which varies from family to family. That is why , its best to depend on the spouse to find out what the custom is in their family and move forward accordingly.