You've asked this question 3 times in the last 15 minutes.
The answer is still no it's not safe.
If you can't put both feet flat footed and sturdy on the ground your not safe. If you've been riding for a while thhought it's still not ideal it's nto a big deal but for a new rider it's a terrible idea as you still don't have your balance down and just overall aren't an experienced rider, your still learning and will make small mistakes which if your on a bike you can control you can correct, however if your on a bike too big for you, you probably canot correct.
