Hello, this message is not meant to be aggressive, or to make you feel bad, but to share a little of my life experience and of the knowledge that I have acquired through my own trials and errors. I don't know if it will help you or anyone at all, in any capacity, but if it does, I'll be happy.

When you're writing, you're most of the time not actually forming り that way. For instance, if you search for the hiragana chart on google, you'll see that there are two ways of writing that hiragana, and the one you see on the computer, like, the default hiragana font, is not the most widely used when written, at least in my experience. I could be wrong, but you haven't studied much japanese, right? Since you're so eager to correct someone about what little knowledge you probably have. It's good to be enthusiastic with your japanese learning, and to want to share it, and maybe to want to educate people. But you probably should wait until you have learnt a lot more, and remain humble: be aware of what you may not yet know, instead of focusing on what you know. Keep the eyes on the horizon, not on your feet.

I believe it's a common mistake to think that what little you know is set in stone when starting something, while it's actually a lot more fluid than that. I see the same with mathematics, with beginners like some of my students clinging tightly to what little they have learnt and repeating everything like gospel, whereas as your understanding progresses, you become more relaxed, because you know better what rules to follow and what rules you can bend.

Do you tell people that don't form their letters when they write the same way they appear on your computer screen that they have made a mistake? That wouldn't make sense, right? But if you had only learnt to write in the roman alphabet by copying letters from that font, well, it would be a honest mistake. I see no ill will from you in the way you tried to help; but there is much you still have to learn. And so do I, of course, but this I know.

I too, was baffled when I discovered that japanese people were actually pretty lax when it came to how you form the letters, and writing in japanese by hand a lot, well, it became apparent to me that I had been a fool to believe that it was so strict and rigorous. But it's only because to me, it was a foreign alphabet, that I found beautiful, but it did not have the same status as letters from the roman alphabet to me, it was more like runes that I would try to reproduce as best as I could.

But that's not how it works.

Because everyone has their own handwriting.

You don't have to write the letters perfectly, exactly the way they appear on your chart or computer screen or whatever; you just write. And if you gotta write fast, it gets sloppy, and that's okay; and if you write a lot, some characters become a bit deformed and a bit weird because you're just imprinting your own personality into the way you write. And that's okay.

Have a great day, and good luck in your future japanese-learning endeavours!