One or the Most significant reasons for the creation of Bitcoin was,to create a currency easy and suitable to be used for peer-to-peer transactions.
During the first eight to nine years of its launch, Bitcoin actually achieved this goal, With fees considerably low as just a few cents. However things began to change at about early 2016 when fees began to increase noticably, and during late 2017 when the mempool started having congestions, which influenced transaction fees directly.
Of course, One can say the reason for the very low fees during its earliest stages was a result of low adoption and a less congested mempool. We can also confirm that due to the problems of competition for block spaces which led to high fees, Bitcoin's block size was increased on August 24, 2017 by the application of the SEGWIT protocol upgrade known as "Segregated witness" in full. This definitely helped in malleability of transactions by separating the signature data (withness data) from the transaction data to free up block space.
Other solutions like the layer 2 that became popular during 2018,also helped reduce congestions and fees by conducting majority of transactions off the Blockchain making transactions more scalable and faster.
However, upon these upgrades and solutions, as Bitcoin grew the congestion problem has become more and more prominent especially due to the effects of ordinals in recent times.These congestion and fee problems are gradually exempting the need to make simple day to day transactions with Bitcoin thereby bring the need for people to make small transactions with other stable altcoins like Tron and Doge.
Take for example
this post made by Hhampuz who is one of the most reputable campaign managers on Bitcoin talk.
In that post Hhampuz made mention of spending roughly $200 /week on fees for each campaign. Now assuming Hhampuz managess 5 campaigns for 15 weeks, taking the math he would have spent an enormous amount of about $15,000 (~0.34
BTC) on fees only. Considering these enormous fees P2P transactions would become uneconomical.