No. In general, starting a blog with multiple niches is not advised or suggested unless you have a team of subject-matter experts from different niches.
If you work alone, start with the one niche you are most passionate about before gradually moving on to the next one within your area of expertise.
Search engines like Google reward websites with niche content that develop authority in a certain niche [showcasing EAT - having Expertise, Authority, and Trustworthiness] while working on the blog. Because of your knowledge, this also persuades readers to accept your information as they follow you or your blog.
You can have another niche within your blog once you feel that your current one is established and getting a good volume of traffic from search engines.
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