I don't think it's as much about a parent helping their child, because that is normal, and good, and many parents do it, especially when their kids are at uni, or not earning too much (early in their career.) It's the fact that it's a bit weird when she is on £40,000 a year (as she claims,) and she is taking big handouts from her father, when she doesn't even appear to need it.
WTF is she doing taking money from her dad when she is bringing in such a wage? 
I actually feel embarrassed for the OP, to be honest. She is not coming across well at all.
Also, I don't know a single person in their mid 20's or above, who is on more than £25,000-30,000 per year, who takes handouts from their parents for 'treats' ... In fact, some people I know (including myself,) who are on good money past the age of 25-30 ish, actually treat their parents to things for looking after them for the first 21 or so years of their life, and supporting them through uni and helping them with their first home etc... In fact, I took great pleasure in treating my parents to a holiday in Italy for their 30th wedding anniversary (when I was 27.)
I love to take them out for dinner every month or so too, and buy them nice gifts for Christmas and birthdays. I earn quit a bit more than them now, and although they are not living in poverty, they are not loaded either. Dad used to earn decent money, but due to ill health, he had to give up his job. Then after almost a year off work, he then started a minimum pay job. And mum doesn't earn much either.
The thought of taking 100s of pounds off my dad to spend on 'treats' and frivolities, with a salary of £40,000 a year (as @ohsaycanusee claims SHE earns,) just makes me cringe to be honest. As I said, to help your kids when they need it is good, but to just chuck money at adult children when they earn more than their parents is just weird. And I have to say I don't know anybody in real life who does it actually!
And no-one is jealous FGS, what a weird comment! 