Looking at some of the other posts of the OP it seems like her husband is actually a long-term kollel fellow (8+ years?). That changes a lot
1. I think it is rare for parents to give support to children for the long term. It may be true that short term (1-4 years) many but not all kollel families receive parental support but long term is rare.
2. While indicated that it seems to me most couples should be able to make it in kollel without the need for parental support all the rules change once you start talking about long term kollel. Once you get into issues of multiple tuitions and a growing family it is a whole different ballpark
3. Yes you will find people even in the chareidi community who will be skeptical about long-term kollel families. Many of the families in these situations are there by accident not because it is part of a life plan. We don’t know the situation of the OP but don’t be surprised if people assume that you are part of that majority that just fell into it.