I attended my DS first nursery party a couple of weeks ago. The party girl and my DS are both two. Thought it would be nice to go, speak to the other mums there and for my DS to play with the other children. I didn't know the party girls mum really but brought her what I thought was a nice present. Not too expensive.
The mum has my number as I text her before saying we were going to attend. AIBU to think it's a little bit rude not to send a quick text to say thanks for my daughter's present. A thank you card might be a bit more but a text takes 1 min.