Make sense to change?

Our family currently uses a toyota wish. Family of 6 with one helper. However we are thinking of downgrading to a 5 seater. Reason being, husband is always working seldom tag along. He has his own motorcycle too. Helper prefers to stay home most time. (we have pets at home and she couldn’t be separated from her cat hah) also monthly quite high cuz parf car. would you stick to current car or get a cheaper five seater? Although car may not be essential, at the moment it is to us as we have to send kids to school, appointments and others. School bus charging us $300 per month. Thats more than our petrol😅