The older generations are stuck in their ways...too old to change...their Islam is based on their culture...all you can do is tolerate them and let them have their say, but politely do what you think is right. It is a shame because the older generations should be wise and they should be able to guide the young...I have found them to be mostly lacking in wisdom.
Slightly off topic. The other side of the coin is the prospective husband had the model looks, very handsome, tall, big house, nice car, high salary in a good job, good sense of humour, chatty, confident, extrovert but his Deen is weak, isn't practising, knowledge is limited, etc. But we'll marry him to our daughter anyhow.