Me and dp can't afford to get married in UK, to have the kind of wedding we would want would cost around 4 grand, which we don't have, so we were considering going to Vegas for 5 days getting married and having a honeymoon at same time, less money and no hassle, my dsis offered to have our ds when we went on honeymoon but has gone totally crazy when I mentioned the new plan. Me and my dsis are very close and she is really upset about us eloping, saying we're selfish and she won't look after ds. We don't want to take ds to Vegas as don't think it's really a good place for an 18 month old and we wanted our honeymoon at same time, also would mean that we would also have to take my dps two older dc, which would make it I expensive and we couldn't do it.
I guest what I am asking is it selfish to family to elope?