You are looking at two options. Carrying on and struggling or asking for a financial contribution.
Isn't the lack of time that you can give to your business also a problem? And one that affects your finances?
If you told your daughter that you love having the children but are struggling to find time for your business and it is making things difficult financially, you might be able to discuss it with her as a practical problem, rather than just asking her for a contribution. It is less personal that way.
The problem of people suggesting you are taking on too much presumably come up in conversation and it is hard to comment without knowing what the rest of that conversation is. If you are pointing out that you are finding things hard financially and don't have enough time for the business, you are likely to get a response that you are taking on too much of the childcare. In that context it is not really criticism.
You have to let your daughter know that you are having problems. It does not sound as if you need major changes. She might not react well as people do tend to feel a bit panicky when an arrangement that works well for them looks like being upended but if you anticipate that and don't tell it personally, you should end up with a more workable arrangement.
It is your life and, cliché that it is, life is short and you can't just give it to someone else, even your daughter.
Prayer ban at Katharine Birbalsingh’s school is lawful, High Court rules .
Should women have equal pay and opportunities?
Does Israel want full scale war in the Middle East?
To think that London, or anywhere else for that matter, does not belong to any one demographic