I am asking why you believe cheating someone out of revenue
Family A: 2 parents, 2 kids. One just 3. Pays £60 to get in by fraudulently saying their 3 year old is still 2.
Family B: 2 parents, 2 kids. One just 3. They have a 2 for 1 offer. They get in for £40.
Are family A supposed to pay £80, to make family B not feel like 'mugs'?
If it is to do with cheating revenue, then that doesn't work for the above case, as the zoo is running an offer, family A weren't aware of.
Should the Zoo keep by spare 2 for 1 tickets and offer them to families who do not have them? Wouldn't that be fairer?
Some people get in with tesco vouchers, some have annual passes, some get offers, some have disabled children or are of pension age and obtain a concession. No one is going to pay the same price.
So this isn't black and white at all.
I agree, this isn't right or wrong. Rarely does anything fall into that category. It's fine.