The correctness of writing texts is always the key to successful communication or just a high-quality presentation of any information. Grammar should be mastered by all people in the world. Before, when there was no Internet, all texts were checked for errors manually. Now there are useful online services that correct texts automatically.

Proper grammar helps others understand your written message without too much difficulty. Errors in grammar can lead to misinterpretation or misunderstanding of your text.
Writing without errors in grammar takes practice and attention to detail. You can use online tools such as TextAdviser https://textadviser.com/en/grammar-checker to check the grammar and style of your text It is also useful to read well-written texts in your chosen language to improve your writing skills.

You're right. Nowadays, it is a shame to be ignorant. After all, there are now a huge number of different services for checking texts for errors and punctuation. Thanks to them, even someone who does not know the language well can write grammatically correct. I always check my creations before publishing on the blog. After all, quality content with interesting ideas always brings good results!