Is it wrong to not give him a ride to work??

So we’re having a little bit of trouble.

My husband works 4 days a week about 50 hours full time and the other 3 days he has off.

His little brother who is 18 doesn’t have a car because he uses all his money to buy weed and constantly asks for rides to work. His mom refuses to take him to work because of this and he usually Uber’s.

We are on a limited budget and being pregnant I have other errands I would like to run as well or even go out to dinner with my husband and he will ask us always at last minute.

My husband feels bad for saying no, but I’m over it. We’ve taken him every time he asked for the past two months and still no progress on him wanting to get a car.

Thoughts??