If you want to try then there is absolutely no reason why you shouldn’t.
I’ve been a few times as my sister lived there.
It’s very centred around the lavish single party life style, which will be difficult with a child and no support. Taxis are relatively cheap but eveything else is eye watering just expensive: even Irish bars attached to hotels are £12-£15 a glass of wine.
The main problem my sister found is the lack of things to do, it’s not really like here, you can’t just go for a walk, find a nice park, mooch around the wee shops. It’s too hot, there are few pavements, most folk drive everywhere, and the things there are to do are centred around tourists/the rich. There’s no cheap activities to do with kids.
She went across on a spousal visa and really struggled to get work despite earning £90k + over here. You need UAE experience for most jobs, and unfortunately they do seem to discriminate against woman/westerners/single parents when hiring...
If I was you I’d find it very lonely with a toddler: you won’t be able to solo alone with work mates much as you’ll neeed/want to get home to your daughter, and you won’t really get to socialise other mums as you’ll be working and come the weekend it will be “family time” (((((I say this as a single mum myself)))))
There are some beautiful less expensive more family friendly places in the world, most without the weather of Dubai, but most far more suited to your lifestyle.
But. If it’s your dream then follow it, if you want something bad enough you will make it work