“I went up and down areas with a cosh, hoping I’d be approached by somebody. I’m ashamed to say that, and I did it for maybe a week – hoping some ‘single mother’ would come out of a pub and have a go at me about something, you know? So that I could desire her.”
Even "against his mom's wishes" is a stretch. Sure, in a literal sense she didnt want her son to race, but acknowledged he could help them and ultimately let him do it.
Granted, I also don't think she knew about Qui-Ron's wager for him, but obviously was glad her son got to be free.
Been a while since I've seen the prequels, though, so apologies if my memory is wrong.